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79e53945 JB |
1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
21 | * DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | */ | |
26 | ||
c1c7af60 JB |
27 | #include <linux/module.h> |
28 | #include <linux/input.h> | |
79e53945 | 29 | #include <linux/i2c.h> |
7662c8bd | 30 | #include <linux/kernel.h> |
79e53945 JB |
31 | #include "drmP.h" |
32 | #include "intel_drv.h" | |
33 | #include "i915_drm.h" | |
34 | #include "i915_drv.h" | |
ab2c0672 | 35 | #include "drm_dp_helper.h" |
79e53945 JB |
36 | |
37 | #include "drm_crtc_helper.h" | |
38 | ||
32f9d658 ZW |
39 | #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) |
40 | ||
79e53945 | 41 | bool intel_pipe_has_type (struct drm_crtc *crtc, int type); |
7662c8bd | 42 | static void intel_update_watermarks(struct drm_device *dev); |
652c393a | 43 | static void intel_increase_pllclock(struct drm_crtc *crtc, bool schedule); |
79e53945 JB |
44 | |
45 | typedef struct { | |
46 | /* given values */ | |
47 | int n; | |
48 | int m1, m2; | |
49 | int p1, p2; | |
50 | /* derived values */ | |
51 | int dot; | |
52 | int vco; | |
53 | int m; | |
54 | int p; | |
55 | } intel_clock_t; | |
56 | ||
57 | typedef struct { | |
58 | int min, max; | |
59 | } intel_range_t; | |
60 | ||
61 | typedef struct { | |
62 | int dot_limit; | |
63 | int p2_slow, p2_fast; | |
64 | } intel_p2_t; | |
65 | ||
66 | #define INTEL_P2_NUM 2 | |
d4906093 ML |
67 | typedef struct intel_limit intel_limit_t; |
68 | struct intel_limit { | |
79e53945 JB |
69 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
70 | intel_p2_t p2; | |
d4906093 ML |
71 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, |
72 | int, int, intel_clock_t *); | |
652c393a JB |
73 | bool (* find_reduced_pll)(const intel_limit_t *, struct drm_crtc *, |
74 | int, int, intel_clock_t *); | |
d4906093 | 75 | }; |
79e53945 JB |
76 | |
77 | #define I8XX_DOT_MIN 25000 | |
78 | #define I8XX_DOT_MAX 350000 | |
79 | #define I8XX_VCO_MIN 930000 | |
80 | #define I8XX_VCO_MAX 1400000 | |
81 | #define I8XX_N_MIN 3 | |
82 | #define I8XX_N_MAX 16 | |
83 | #define I8XX_M_MIN 96 | |
84 | #define I8XX_M_MAX 140 | |
85 | #define I8XX_M1_MIN 18 | |
86 | #define I8XX_M1_MAX 26 | |
87 | #define I8XX_M2_MIN 6 | |
88 | #define I8XX_M2_MAX 16 | |
89 | #define I8XX_P_MIN 4 | |
90 | #define I8XX_P_MAX 128 | |
91 | #define I8XX_P1_MIN 2 | |
92 | #define I8XX_P1_MAX 33 | |
93 | #define I8XX_P1_LVDS_MIN 1 | |
94 | #define I8XX_P1_LVDS_MAX 6 | |
95 | #define I8XX_P2_SLOW 4 | |
96 | #define I8XX_P2_FAST 2 | |
97 | #define I8XX_P2_LVDS_SLOW 14 | |
0c2e3952 | 98 | #define I8XX_P2_LVDS_FAST 7 |
79e53945 JB |
99 | #define I8XX_P2_SLOW_LIMIT 165000 |
100 | ||
101 | #define I9XX_DOT_MIN 20000 | |
102 | #define I9XX_DOT_MAX 400000 | |
103 | #define I9XX_VCO_MIN 1400000 | |
104 | #define I9XX_VCO_MAX 2800000 | |
f2b115e6 AJ |
105 | #define PINEVIEW_VCO_MIN 1700000 |
106 | #define PINEVIEW_VCO_MAX 3500000 | |
f3cade5c KH |
107 | #define I9XX_N_MIN 1 |
108 | #define I9XX_N_MAX 6 | |
f2b115e6 AJ |
109 | /* Pineview's Ncounter is a ring counter */ |
110 | #define PINEVIEW_N_MIN 3 | |
111 | #define PINEVIEW_N_MAX 6 | |
79e53945 JB |
112 | #define I9XX_M_MIN 70 |
113 | #define I9XX_M_MAX 120 | |
f2b115e6 AJ |
114 | #define PINEVIEW_M_MIN 2 |
115 | #define PINEVIEW_M_MAX 256 | |
79e53945 | 116 | #define I9XX_M1_MIN 10 |
f3cade5c | 117 | #define I9XX_M1_MAX 22 |
79e53945 JB |
118 | #define I9XX_M2_MIN 5 |
119 | #define I9XX_M2_MAX 9 | |
f2b115e6 AJ |
120 | /* Pineview M1 is reserved, and must be 0 */ |
121 | #define PINEVIEW_M1_MIN 0 | |
122 | #define PINEVIEW_M1_MAX 0 | |
123 | #define PINEVIEW_M2_MIN 0 | |
124 | #define PINEVIEW_M2_MAX 254 | |
79e53945 JB |
125 | #define I9XX_P_SDVO_DAC_MIN 5 |
126 | #define I9XX_P_SDVO_DAC_MAX 80 | |
127 | #define I9XX_P_LVDS_MIN 7 | |
128 | #define I9XX_P_LVDS_MAX 98 | |
f2b115e6 AJ |
129 | #define PINEVIEW_P_LVDS_MIN 7 |
130 | #define PINEVIEW_P_LVDS_MAX 112 | |
79e53945 JB |
131 | #define I9XX_P1_MIN 1 |
132 | #define I9XX_P1_MAX 8 | |
133 | #define I9XX_P2_SDVO_DAC_SLOW 10 | |
134 | #define I9XX_P2_SDVO_DAC_FAST 5 | |
135 | #define I9XX_P2_SDVO_DAC_SLOW_LIMIT 200000 | |
136 | #define I9XX_P2_LVDS_SLOW 14 | |
137 | #define I9XX_P2_LVDS_FAST 7 | |
138 | #define I9XX_P2_LVDS_SLOW_LIMIT 112000 | |
139 | ||
044c7c41 ML |
140 | /*The parameter is for SDVO on G4x platform*/ |
141 | #define G4X_DOT_SDVO_MIN 25000 | |
142 | #define G4X_DOT_SDVO_MAX 270000 | |
143 | #define G4X_VCO_MIN 1750000 | |
144 | #define G4X_VCO_MAX 3500000 | |
145 | #define G4X_N_SDVO_MIN 1 | |
146 | #define G4X_N_SDVO_MAX 4 | |
147 | #define G4X_M_SDVO_MIN 104 | |
148 | #define G4X_M_SDVO_MAX 138 | |
149 | #define G4X_M1_SDVO_MIN 17 | |
150 | #define G4X_M1_SDVO_MAX 23 | |
151 | #define G4X_M2_SDVO_MIN 5 | |
152 | #define G4X_M2_SDVO_MAX 11 | |
153 | #define G4X_P_SDVO_MIN 10 | |
154 | #define G4X_P_SDVO_MAX 30 | |
155 | #define G4X_P1_SDVO_MIN 1 | |
156 | #define G4X_P1_SDVO_MAX 3 | |
157 | #define G4X_P2_SDVO_SLOW 10 | |
158 | #define G4X_P2_SDVO_FAST 10 | |
159 | #define G4X_P2_SDVO_LIMIT 270000 | |
160 | ||
161 | /*The parameter is for HDMI_DAC on G4x platform*/ | |
162 | #define G4X_DOT_HDMI_DAC_MIN 22000 | |
163 | #define G4X_DOT_HDMI_DAC_MAX 400000 | |
164 | #define G4X_N_HDMI_DAC_MIN 1 | |
165 | #define G4X_N_HDMI_DAC_MAX 4 | |
166 | #define G4X_M_HDMI_DAC_MIN 104 | |
167 | #define G4X_M_HDMI_DAC_MAX 138 | |
168 | #define G4X_M1_HDMI_DAC_MIN 16 | |
169 | #define G4X_M1_HDMI_DAC_MAX 23 | |
170 | #define G4X_M2_HDMI_DAC_MIN 5 | |
171 | #define G4X_M2_HDMI_DAC_MAX 11 | |
172 | #define G4X_P_HDMI_DAC_MIN 5 | |
173 | #define G4X_P_HDMI_DAC_MAX 80 | |
174 | #define G4X_P1_HDMI_DAC_MIN 1 | |
175 | #define G4X_P1_HDMI_DAC_MAX 8 | |
176 | #define G4X_P2_HDMI_DAC_SLOW 10 | |
177 | #define G4X_P2_HDMI_DAC_FAST 5 | |
178 | #define G4X_P2_HDMI_DAC_LIMIT 165000 | |
179 | ||
180 | /*The parameter is for SINGLE_CHANNEL_LVDS on G4x platform*/ | |
181 | #define G4X_DOT_SINGLE_CHANNEL_LVDS_MIN 20000 | |
182 | #define G4X_DOT_SINGLE_CHANNEL_LVDS_MAX 115000 | |
183 | #define G4X_N_SINGLE_CHANNEL_LVDS_MIN 1 | |
184 | #define G4X_N_SINGLE_CHANNEL_LVDS_MAX 3 | |
185 | #define G4X_M_SINGLE_CHANNEL_LVDS_MIN 104 | |
186 | #define G4X_M_SINGLE_CHANNEL_LVDS_MAX 138 | |
187 | #define G4X_M1_SINGLE_CHANNEL_LVDS_MIN 17 | |
188 | #define G4X_M1_SINGLE_CHANNEL_LVDS_MAX 23 | |
189 | #define G4X_M2_SINGLE_CHANNEL_LVDS_MIN 5 | |
190 | #define G4X_M2_SINGLE_CHANNEL_LVDS_MAX 11 | |
191 | #define G4X_P_SINGLE_CHANNEL_LVDS_MIN 28 | |
192 | #define G4X_P_SINGLE_CHANNEL_LVDS_MAX 112 | |
193 | #define G4X_P1_SINGLE_CHANNEL_LVDS_MIN 2 | |
194 | #define G4X_P1_SINGLE_CHANNEL_LVDS_MAX 8 | |
195 | #define G4X_P2_SINGLE_CHANNEL_LVDS_SLOW 14 | |
196 | #define G4X_P2_SINGLE_CHANNEL_LVDS_FAST 14 | |
197 | #define G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT 0 | |
198 | ||
199 | /*The parameter is for DUAL_CHANNEL_LVDS on G4x platform*/ | |
200 | #define G4X_DOT_DUAL_CHANNEL_LVDS_MIN 80000 | |
201 | #define G4X_DOT_DUAL_CHANNEL_LVDS_MAX 224000 | |
202 | #define G4X_N_DUAL_CHANNEL_LVDS_MIN 1 | |
203 | #define G4X_N_DUAL_CHANNEL_LVDS_MAX 3 | |
204 | #define G4X_M_DUAL_CHANNEL_LVDS_MIN 104 | |
205 | #define G4X_M_DUAL_CHANNEL_LVDS_MAX 138 | |
206 | #define G4X_M1_DUAL_CHANNEL_LVDS_MIN 17 | |
207 | #define G4X_M1_DUAL_CHANNEL_LVDS_MAX 23 | |
208 | #define G4X_M2_DUAL_CHANNEL_LVDS_MIN 5 | |
209 | #define G4X_M2_DUAL_CHANNEL_LVDS_MAX 11 | |
210 | #define G4X_P_DUAL_CHANNEL_LVDS_MIN 14 | |
211 | #define G4X_P_DUAL_CHANNEL_LVDS_MAX 42 | |
212 | #define G4X_P1_DUAL_CHANNEL_LVDS_MIN 2 | |
213 | #define G4X_P1_DUAL_CHANNEL_LVDS_MAX 6 | |
214 | #define G4X_P2_DUAL_CHANNEL_LVDS_SLOW 7 | |
215 | #define G4X_P2_DUAL_CHANNEL_LVDS_FAST 7 | |
216 | #define G4X_P2_DUAL_CHANNEL_LVDS_LIMIT 0 | |
217 | ||
a4fc5ed6 KP |
218 | /*The parameter is for DISPLAY PORT on G4x platform*/ |
219 | #define G4X_DOT_DISPLAY_PORT_MIN 161670 | |
220 | #define G4X_DOT_DISPLAY_PORT_MAX 227000 | |
221 | #define G4X_N_DISPLAY_PORT_MIN 1 | |
222 | #define G4X_N_DISPLAY_PORT_MAX 2 | |
223 | #define G4X_M_DISPLAY_PORT_MIN 97 | |
224 | #define G4X_M_DISPLAY_PORT_MAX 108 | |
225 | #define G4X_M1_DISPLAY_PORT_MIN 0x10 | |
226 | #define G4X_M1_DISPLAY_PORT_MAX 0x12 | |
227 | #define G4X_M2_DISPLAY_PORT_MIN 0x05 | |
228 | #define G4X_M2_DISPLAY_PORT_MAX 0x06 | |
229 | #define G4X_P_DISPLAY_PORT_MIN 10 | |
230 | #define G4X_P_DISPLAY_PORT_MAX 20 | |
231 | #define G4X_P1_DISPLAY_PORT_MIN 1 | |
232 | #define G4X_P1_DISPLAY_PORT_MAX 2 | |
233 | #define G4X_P2_DISPLAY_PORT_SLOW 10 | |
234 | #define G4X_P2_DISPLAY_PORT_FAST 10 | |
235 | #define G4X_P2_DISPLAY_PORT_LIMIT 0 | |
236 | ||
f2b115e6 | 237 | /* Ironlake */ |
2c07245f ZW |
238 | /* as we calculate clock using (register_value + 2) for |
239 | N/M1/M2, so here the range value for them is (actual_value-2). | |
240 | */ | |
f2b115e6 AJ |
241 | #define IRONLAKE_DOT_MIN 25000 |
242 | #define IRONLAKE_DOT_MAX 350000 | |
243 | #define IRONLAKE_VCO_MIN 1760000 | |
244 | #define IRONLAKE_VCO_MAX 3510000 | |
245 | #define IRONLAKE_N_MIN 1 | |
246 | #define IRONLAKE_N_MAX 5 | |
247 | #define IRONLAKE_M_MIN 79 | |
248 | #define IRONLAKE_M_MAX 118 | |
249 | #define IRONLAKE_M1_MIN 12 | |
250 | #define IRONLAKE_M1_MAX 23 | |
251 | #define IRONLAKE_M2_MIN 5 | |
252 | #define IRONLAKE_M2_MAX 9 | |
253 | #define IRONLAKE_P_SDVO_DAC_MIN 5 | |
254 | #define IRONLAKE_P_SDVO_DAC_MAX 80 | |
255 | #define IRONLAKE_P_LVDS_MIN 28 | |
256 | #define IRONLAKE_P_LVDS_MAX 112 | |
257 | #define IRONLAKE_P1_MIN 1 | |
258 | #define IRONLAKE_P1_MAX 8 | |
259 | #define IRONLAKE_P2_SDVO_DAC_SLOW 10 | |
260 | #define IRONLAKE_P2_SDVO_DAC_FAST 5 | |
261 | #define IRONLAKE_P2_LVDS_SLOW 14 /* single channel */ | |
262 | #define IRONLAKE_P2_LVDS_FAST 7 /* double channel */ | |
263 | #define IRONLAKE_P2_DOT_LIMIT 225000 /* 225Mhz */ | |
2c07245f | 264 | |
d4906093 ML |
265 | static bool |
266 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
267 | int target, int refclk, intel_clock_t *best_clock); | |
268 | static bool | |
652c393a JB |
269 | intel_find_best_reduced_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
270 | int target, int refclk, intel_clock_t *best_clock); | |
271 | static bool | |
d4906093 ML |
272 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
273 | int target, int refclk, intel_clock_t *best_clock); | |
2c07245f | 274 | static bool |
f2b115e6 AJ |
275 | intel_ironlake_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
276 | int target, int refclk, intel_clock_t *best_clock); | |
79e53945 | 277 | |
a4fc5ed6 KP |
278 | static bool |
279 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, | |
280 | int target, int refclk, intel_clock_t *best_clock); | |
5eb08b69 | 281 | static bool |
f2b115e6 AJ |
282 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
283 | int target, int refclk, intel_clock_t *best_clock); | |
a4fc5ed6 | 284 | |
e4b36699 | 285 | static const intel_limit_t intel_limits_i8xx_dvo = { |
79e53945 JB |
286 | .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, |
287 | .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, | |
288 | .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, | |
289 | .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX }, | |
290 | .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX }, | |
291 | .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX }, | |
292 | .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX }, | |
293 | .p1 = { .min = I8XX_P1_MIN, .max = I8XX_P1_MAX }, | |
294 | .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, | |
295 | .p2_slow = I8XX_P2_SLOW, .p2_fast = I8XX_P2_FAST }, | |
d4906093 | 296 | .find_pll = intel_find_best_PLL, |
652c393a | 297 | .find_reduced_pll = intel_find_best_reduced_PLL, |
e4b36699 KP |
298 | }; |
299 | ||
300 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
79e53945 JB |
301 | .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, |
302 | .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, | |
303 | .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, | |
304 | .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX }, | |
305 | .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX }, | |
306 | .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX }, | |
307 | .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX }, | |
308 | .p1 = { .min = I8XX_P1_LVDS_MIN, .max = I8XX_P1_LVDS_MAX }, | |
309 | .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, | |
310 | .p2_slow = I8XX_P2_LVDS_SLOW, .p2_fast = I8XX_P2_LVDS_FAST }, | |
d4906093 | 311 | .find_pll = intel_find_best_PLL, |
652c393a | 312 | .find_reduced_pll = intel_find_best_reduced_PLL, |
e4b36699 KP |
313 | }; |
314 | ||
315 | static const intel_limit_t intel_limits_i9xx_sdvo = { | |
79e53945 JB |
316 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
317 | .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, | |
318 | .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, | |
319 | .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX }, | |
320 | .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX }, | |
321 | .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX }, | |
322 | .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX }, | |
323 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
324 | .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, | |
325 | .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, | |
d4906093 | 326 | .find_pll = intel_find_best_PLL, |
652c393a | 327 | .find_reduced_pll = intel_find_best_reduced_PLL, |
e4b36699 KP |
328 | }; |
329 | ||
330 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
79e53945 JB |
331 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
332 | .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, | |
333 | .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, | |
334 | .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX }, | |
335 | .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX }, | |
336 | .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX }, | |
337 | .p = { .min = I9XX_P_LVDS_MIN, .max = I9XX_P_LVDS_MAX }, | |
338 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
339 | /* The single-channel range is 25-112Mhz, and dual-channel | |
340 | * is 80-224Mhz. Prefer single channel as much as possible. | |
341 | */ | |
342 | .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, | |
343 | .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_FAST }, | |
d4906093 | 344 | .find_pll = intel_find_best_PLL, |
652c393a | 345 | .find_reduced_pll = intel_find_best_reduced_PLL, |
e4b36699 KP |
346 | }; |
347 | ||
044c7c41 | 348 | /* below parameter and function is for G4X Chipset Family*/ |
e4b36699 | 349 | static const intel_limit_t intel_limits_g4x_sdvo = { |
044c7c41 ML |
350 | .dot = { .min = G4X_DOT_SDVO_MIN, .max = G4X_DOT_SDVO_MAX }, |
351 | .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, | |
352 | .n = { .min = G4X_N_SDVO_MIN, .max = G4X_N_SDVO_MAX }, | |
353 | .m = { .min = G4X_M_SDVO_MIN, .max = G4X_M_SDVO_MAX }, | |
354 | .m1 = { .min = G4X_M1_SDVO_MIN, .max = G4X_M1_SDVO_MAX }, | |
355 | .m2 = { .min = G4X_M2_SDVO_MIN, .max = G4X_M2_SDVO_MAX }, | |
356 | .p = { .min = G4X_P_SDVO_MIN, .max = G4X_P_SDVO_MAX }, | |
357 | .p1 = { .min = G4X_P1_SDVO_MIN, .max = G4X_P1_SDVO_MAX}, | |
358 | .p2 = { .dot_limit = G4X_P2_SDVO_LIMIT, | |
359 | .p2_slow = G4X_P2_SDVO_SLOW, | |
360 | .p2_fast = G4X_P2_SDVO_FAST | |
361 | }, | |
d4906093 | 362 | .find_pll = intel_g4x_find_best_PLL, |
652c393a | 363 | .find_reduced_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
364 | }; |
365 | ||
366 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
044c7c41 ML |
367 | .dot = { .min = G4X_DOT_HDMI_DAC_MIN, .max = G4X_DOT_HDMI_DAC_MAX }, |
368 | .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, | |
369 | .n = { .min = G4X_N_HDMI_DAC_MIN, .max = G4X_N_HDMI_DAC_MAX }, | |
370 | .m = { .min = G4X_M_HDMI_DAC_MIN, .max = G4X_M_HDMI_DAC_MAX }, | |
371 | .m1 = { .min = G4X_M1_HDMI_DAC_MIN, .max = G4X_M1_HDMI_DAC_MAX }, | |
372 | .m2 = { .min = G4X_M2_HDMI_DAC_MIN, .max = G4X_M2_HDMI_DAC_MAX }, | |
373 | .p = { .min = G4X_P_HDMI_DAC_MIN, .max = G4X_P_HDMI_DAC_MAX }, | |
374 | .p1 = { .min = G4X_P1_HDMI_DAC_MIN, .max = G4X_P1_HDMI_DAC_MAX}, | |
375 | .p2 = { .dot_limit = G4X_P2_HDMI_DAC_LIMIT, | |
376 | .p2_slow = G4X_P2_HDMI_DAC_SLOW, | |
377 | .p2_fast = G4X_P2_HDMI_DAC_FAST | |
378 | }, | |
d4906093 | 379 | .find_pll = intel_g4x_find_best_PLL, |
652c393a | 380 | .find_reduced_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
381 | }; |
382 | ||
383 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
044c7c41 ML |
384 | .dot = { .min = G4X_DOT_SINGLE_CHANNEL_LVDS_MIN, |
385 | .max = G4X_DOT_SINGLE_CHANNEL_LVDS_MAX }, | |
386 | .vco = { .min = G4X_VCO_MIN, | |
387 | .max = G4X_VCO_MAX }, | |
388 | .n = { .min = G4X_N_SINGLE_CHANNEL_LVDS_MIN, | |
389 | .max = G4X_N_SINGLE_CHANNEL_LVDS_MAX }, | |
390 | .m = { .min = G4X_M_SINGLE_CHANNEL_LVDS_MIN, | |
391 | .max = G4X_M_SINGLE_CHANNEL_LVDS_MAX }, | |
392 | .m1 = { .min = G4X_M1_SINGLE_CHANNEL_LVDS_MIN, | |
393 | .max = G4X_M1_SINGLE_CHANNEL_LVDS_MAX }, | |
394 | .m2 = { .min = G4X_M2_SINGLE_CHANNEL_LVDS_MIN, | |
395 | .max = G4X_M2_SINGLE_CHANNEL_LVDS_MAX }, | |
396 | .p = { .min = G4X_P_SINGLE_CHANNEL_LVDS_MIN, | |
397 | .max = G4X_P_SINGLE_CHANNEL_LVDS_MAX }, | |
398 | .p1 = { .min = G4X_P1_SINGLE_CHANNEL_LVDS_MIN, | |
399 | .max = G4X_P1_SINGLE_CHANNEL_LVDS_MAX }, | |
400 | .p2 = { .dot_limit = G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT, | |
401 | .p2_slow = G4X_P2_SINGLE_CHANNEL_LVDS_SLOW, | |
402 | .p2_fast = G4X_P2_SINGLE_CHANNEL_LVDS_FAST | |
403 | }, | |
d4906093 | 404 | .find_pll = intel_g4x_find_best_PLL, |
652c393a | 405 | .find_reduced_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
406 | }; |
407 | ||
408 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
044c7c41 ML |
409 | .dot = { .min = G4X_DOT_DUAL_CHANNEL_LVDS_MIN, |
410 | .max = G4X_DOT_DUAL_CHANNEL_LVDS_MAX }, | |
411 | .vco = { .min = G4X_VCO_MIN, | |
412 | .max = G4X_VCO_MAX }, | |
413 | .n = { .min = G4X_N_DUAL_CHANNEL_LVDS_MIN, | |
414 | .max = G4X_N_DUAL_CHANNEL_LVDS_MAX }, | |
415 | .m = { .min = G4X_M_DUAL_CHANNEL_LVDS_MIN, | |
416 | .max = G4X_M_DUAL_CHANNEL_LVDS_MAX }, | |
417 | .m1 = { .min = G4X_M1_DUAL_CHANNEL_LVDS_MIN, | |
418 | .max = G4X_M1_DUAL_CHANNEL_LVDS_MAX }, | |
419 | .m2 = { .min = G4X_M2_DUAL_CHANNEL_LVDS_MIN, | |
420 | .max = G4X_M2_DUAL_CHANNEL_LVDS_MAX }, | |
421 | .p = { .min = G4X_P_DUAL_CHANNEL_LVDS_MIN, | |
422 | .max = G4X_P_DUAL_CHANNEL_LVDS_MAX }, | |
423 | .p1 = { .min = G4X_P1_DUAL_CHANNEL_LVDS_MIN, | |
424 | .max = G4X_P1_DUAL_CHANNEL_LVDS_MAX }, | |
425 | .p2 = { .dot_limit = G4X_P2_DUAL_CHANNEL_LVDS_LIMIT, | |
426 | .p2_slow = G4X_P2_DUAL_CHANNEL_LVDS_SLOW, | |
427 | .p2_fast = G4X_P2_DUAL_CHANNEL_LVDS_FAST | |
428 | }, | |
d4906093 | 429 | .find_pll = intel_g4x_find_best_PLL, |
652c393a | 430 | .find_reduced_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
431 | }; |
432 | ||
433 | static const intel_limit_t intel_limits_g4x_display_port = { | |
a4fc5ed6 KP |
434 | .dot = { .min = G4X_DOT_DISPLAY_PORT_MIN, |
435 | .max = G4X_DOT_DISPLAY_PORT_MAX }, | |
436 | .vco = { .min = G4X_VCO_MIN, | |
437 | .max = G4X_VCO_MAX}, | |
438 | .n = { .min = G4X_N_DISPLAY_PORT_MIN, | |
439 | .max = G4X_N_DISPLAY_PORT_MAX }, | |
440 | .m = { .min = G4X_M_DISPLAY_PORT_MIN, | |
441 | .max = G4X_M_DISPLAY_PORT_MAX }, | |
442 | .m1 = { .min = G4X_M1_DISPLAY_PORT_MIN, | |
443 | .max = G4X_M1_DISPLAY_PORT_MAX }, | |
444 | .m2 = { .min = G4X_M2_DISPLAY_PORT_MIN, | |
445 | .max = G4X_M2_DISPLAY_PORT_MAX }, | |
446 | .p = { .min = G4X_P_DISPLAY_PORT_MIN, | |
447 | .max = G4X_P_DISPLAY_PORT_MAX }, | |
448 | .p1 = { .min = G4X_P1_DISPLAY_PORT_MIN, | |
449 | .max = G4X_P1_DISPLAY_PORT_MAX}, | |
450 | .p2 = { .dot_limit = G4X_P2_DISPLAY_PORT_LIMIT, | |
451 | .p2_slow = G4X_P2_DISPLAY_PORT_SLOW, | |
452 | .p2_fast = G4X_P2_DISPLAY_PORT_FAST }, | |
453 | .find_pll = intel_find_pll_g4x_dp, | |
e4b36699 KP |
454 | }; |
455 | ||
f2b115e6 | 456 | static const intel_limit_t intel_limits_pineview_sdvo = { |
2177832f | 457 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX}, |
f2b115e6 AJ |
458 | .vco = { .min = PINEVIEW_VCO_MIN, .max = PINEVIEW_VCO_MAX }, |
459 | .n = { .min = PINEVIEW_N_MIN, .max = PINEVIEW_N_MAX }, | |
460 | .m = { .min = PINEVIEW_M_MIN, .max = PINEVIEW_M_MAX }, | |
461 | .m1 = { .min = PINEVIEW_M1_MIN, .max = PINEVIEW_M1_MAX }, | |
462 | .m2 = { .min = PINEVIEW_M2_MIN, .max = PINEVIEW_M2_MAX }, | |
2177832f SL |
463 | .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX }, |
464 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
465 | .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, | |
466 | .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, | |
6115707b | 467 | .find_pll = intel_find_best_PLL, |
652c393a | 468 | .find_reduced_pll = intel_find_best_reduced_PLL, |
e4b36699 KP |
469 | }; |
470 | ||
f2b115e6 | 471 | static const intel_limit_t intel_limits_pineview_lvds = { |
2177832f | 472 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
f2b115e6 AJ |
473 | .vco = { .min = PINEVIEW_VCO_MIN, .max = PINEVIEW_VCO_MAX }, |
474 | .n = { .min = PINEVIEW_N_MIN, .max = PINEVIEW_N_MAX }, | |
475 | .m = { .min = PINEVIEW_M_MIN, .max = PINEVIEW_M_MAX }, | |
476 | .m1 = { .min = PINEVIEW_M1_MIN, .max = PINEVIEW_M1_MAX }, | |
477 | .m2 = { .min = PINEVIEW_M2_MIN, .max = PINEVIEW_M2_MAX }, | |
478 | .p = { .min = PINEVIEW_P_LVDS_MIN, .max = PINEVIEW_P_LVDS_MAX }, | |
2177832f | 479 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, |
f2b115e6 | 480 | /* Pineview only supports single-channel mode. */ |
2177832f SL |
481 | .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, |
482 | .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_SLOW }, | |
6115707b | 483 | .find_pll = intel_find_best_PLL, |
652c393a | 484 | .find_reduced_pll = intel_find_best_reduced_PLL, |
e4b36699 KP |
485 | }; |
486 | ||
f2b115e6 AJ |
487 | static const intel_limit_t intel_limits_ironlake_sdvo = { |
488 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, | |
489 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
490 | .n = { .min = IRONLAKE_N_MIN, .max = IRONLAKE_N_MAX }, | |
491 | .m = { .min = IRONLAKE_M_MIN, .max = IRONLAKE_M_MAX }, | |
492 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, | |
493 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
494 | .p = { .min = IRONLAKE_P_SDVO_DAC_MIN, .max = IRONLAKE_P_SDVO_DAC_MAX }, | |
495 | .p1 = { .min = IRONLAKE_P1_MIN, .max = IRONLAKE_P1_MAX }, | |
496 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, | |
497 | .p2_slow = IRONLAKE_P2_SDVO_DAC_SLOW, | |
498 | .p2_fast = IRONLAKE_P2_SDVO_DAC_FAST }, | |
499 | .find_pll = intel_ironlake_find_best_PLL, | |
e4b36699 KP |
500 | }; |
501 | ||
f2b115e6 AJ |
502 | static const intel_limit_t intel_limits_ironlake_lvds = { |
503 | .dot = { .min = IRONLAKE_DOT_MIN, .max = IRONLAKE_DOT_MAX }, | |
504 | .vco = { .min = IRONLAKE_VCO_MIN, .max = IRONLAKE_VCO_MAX }, | |
505 | .n = { .min = IRONLAKE_N_MIN, .max = IRONLAKE_N_MAX }, | |
506 | .m = { .min = IRONLAKE_M_MIN, .max = IRONLAKE_M_MAX }, | |
507 | .m1 = { .min = IRONLAKE_M1_MIN, .max = IRONLAKE_M1_MAX }, | |
508 | .m2 = { .min = IRONLAKE_M2_MIN, .max = IRONLAKE_M2_MAX }, | |
509 | .p = { .min = IRONLAKE_P_LVDS_MIN, .max = IRONLAKE_P_LVDS_MAX }, | |
510 | .p1 = { .min = IRONLAKE_P1_MIN, .max = IRONLAKE_P1_MAX }, | |
511 | .p2 = { .dot_limit = IRONLAKE_P2_DOT_LIMIT, | |
512 | .p2_slow = IRONLAKE_P2_LVDS_SLOW, | |
513 | .p2_fast = IRONLAKE_P2_LVDS_FAST }, | |
514 | .find_pll = intel_ironlake_find_best_PLL, | |
79e53945 JB |
515 | }; |
516 | ||
f2b115e6 | 517 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc) |
2c07245f ZW |
518 | { |
519 | const intel_limit_t *limit; | |
520 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
f2b115e6 | 521 | limit = &intel_limits_ironlake_lvds; |
2c07245f | 522 | else |
f2b115e6 | 523 | limit = &intel_limits_ironlake_sdvo; |
2c07245f ZW |
524 | |
525 | return limit; | |
526 | } | |
527 | ||
044c7c41 ML |
528 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
529 | { | |
530 | struct drm_device *dev = crtc->dev; | |
531 | struct drm_i915_private *dev_priv = dev->dev_private; | |
532 | const intel_limit_t *limit; | |
533 | ||
534 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
535 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
536 | LVDS_CLKB_POWER_UP) | |
537 | /* LVDS with dual channel */ | |
e4b36699 | 538 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 ML |
539 | else |
540 | /* LVDS with dual channel */ | |
e4b36699 | 541 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
542 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
543 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 544 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 545 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 546 | limit = &intel_limits_g4x_sdvo; |
a4fc5ed6 | 547 | } else if (intel_pipe_has_type (crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
e4b36699 | 548 | limit = &intel_limits_g4x_display_port; |
044c7c41 | 549 | } else /* The option is for other outputs */ |
e4b36699 | 550 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
551 | |
552 | return limit; | |
553 | } | |
554 | ||
79e53945 JB |
555 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc) |
556 | { | |
557 | struct drm_device *dev = crtc->dev; | |
558 | const intel_limit_t *limit; | |
559 | ||
f2b115e6 AJ |
560 | if (IS_IRONLAKE(dev)) |
561 | limit = intel_ironlake_limit(crtc); | |
2c07245f | 562 | else if (IS_G4X(dev)) { |
044c7c41 | 563 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 564 | } else if (IS_I9XX(dev) && !IS_PINEVIEW(dev)) { |
79e53945 | 565 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
e4b36699 | 566 | limit = &intel_limits_i9xx_lvds; |
79e53945 | 567 | else |
e4b36699 | 568 | limit = &intel_limits_i9xx_sdvo; |
f2b115e6 | 569 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 570 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 571 | limit = &intel_limits_pineview_lvds; |
2177832f | 572 | else |
f2b115e6 | 573 | limit = &intel_limits_pineview_sdvo; |
79e53945 JB |
574 | } else { |
575 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 576 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 577 | else |
e4b36699 | 578 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
579 | } |
580 | return limit; | |
581 | } | |
582 | ||
f2b115e6 AJ |
583 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
584 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 585 | { |
2177832f SL |
586 | clock->m = clock->m2 + 2; |
587 | clock->p = clock->p1 * clock->p2; | |
588 | clock->vco = refclk * clock->m / clock->n; | |
589 | clock->dot = clock->vco / clock->p; | |
590 | } | |
591 | ||
592 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) | |
593 | { | |
f2b115e6 AJ |
594 | if (IS_PINEVIEW(dev)) { |
595 | pineview_clock(refclk, clock); | |
2177832f SL |
596 | return; |
597 | } | |
79e53945 JB |
598 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
599 | clock->p = clock->p1 * clock->p2; | |
600 | clock->vco = refclk * clock->m / (clock->n + 2); | |
601 | clock->dot = clock->vco / clock->p; | |
602 | } | |
603 | ||
79e53945 JB |
604 | /** |
605 | * Returns whether any output on the specified pipe is of the specified type | |
606 | */ | |
607 | bool intel_pipe_has_type (struct drm_crtc *crtc, int type) | |
608 | { | |
609 | struct drm_device *dev = crtc->dev; | |
610 | struct drm_mode_config *mode_config = &dev->mode_config; | |
611 | struct drm_connector *l_entry; | |
612 | ||
613 | list_for_each_entry(l_entry, &mode_config->connector_list, head) { | |
614 | if (l_entry->encoder && | |
615 | l_entry->encoder->crtc == crtc) { | |
616 | struct intel_output *intel_output = to_intel_output(l_entry); | |
617 | if (intel_output->type == type) | |
618 | return true; | |
619 | } | |
620 | } | |
621 | return false; | |
622 | } | |
623 | ||
32f9d658 ZW |
624 | struct drm_connector * |
625 | intel_pipe_get_output (struct drm_crtc *crtc) | |
626 | { | |
627 | struct drm_device *dev = crtc->dev; | |
628 | struct drm_mode_config *mode_config = &dev->mode_config; | |
629 | struct drm_connector *l_entry, *ret = NULL; | |
630 | ||
631 | list_for_each_entry(l_entry, &mode_config->connector_list, head) { | |
632 | if (l_entry->encoder && | |
633 | l_entry->encoder->crtc == crtc) { | |
634 | ret = l_entry; | |
635 | break; | |
636 | } | |
637 | } | |
638 | return ret; | |
639 | } | |
640 | ||
7c04d1d9 | 641 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
642 | /** |
643 | * Returns whether the given set of divisors are valid for a given refclk with | |
644 | * the given connectors. | |
645 | */ | |
646 | ||
647 | static bool intel_PLL_is_valid(struct drm_crtc *crtc, intel_clock_t *clock) | |
648 | { | |
649 | const intel_limit_t *limit = intel_limit (crtc); | |
2177832f | 650 | struct drm_device *dev = crtc->dev; |
79e53945 JB |
651 | |
652 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) | |
653 | INTELPllInvalid ("p1 out of range\n"); | |
654 | if (clock->p < limit->p.min || limit->p.max < clock->p) | |
655 | INTELPllInvalid ("p out of range\n"); | |
656 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) | |
657 | INTELPllInvalid ("m2 out of range\n"); | |
658 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) | |
659 | INTELPllInvalid ("m1 out of range\n"); | |
f2b115e6 | 660 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
79e53945 JB |
661 | INTELPllInvalid ("m1 <= m2\n"); |
662 | if (clock->m < limit->m.min || limit->m.max < clock->m) | |
663 | INTELPllInvalid ("m out of range\n"); | |
664 | if (clock->n < limit->n.min || limit->n.max < clock->n) | |
665 | INTELPllInvalid ("n out of range\n"); | |
666 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) | |
667 | INTELPllInvalid ("vco out of range\n"); | |
668 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, | |
669 | * connector, etc., rather than just a single range. | |
670 | */ | |
671 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
672 | INTELPllInvalid ("dot out of range\n"); | |
673 | ||
674 | return true; | |
675 | } | |
676 | ||
d4906093 ML |
677 | static bool |
678 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
679 | int target, int refclk, intel_clock_t *best_clock) | |
680 | ||
79e53945 JB |
681 | { |
682 | struct drm_device *dev = crtc->dev; | |
683 | struct drm_i915_private *dev_priv = dev->dev_private; | |
684 | intel_clock_t clock; | |
79e53945 JB |
685 | int err = target; |
686 | ||
bc5e5718 | 687 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
832cc28d | 688 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
689 | /* |
690 | * For LVDS, if the panel is on, just rely on its current | |
691 | * settings for dual-channel. We haven't figured out how to | |
692 | * reliably set up different single/dual channel state, if we | |
693 | * even can. | |
694 | */ | |
695 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
696 | LVDS_CLKB_POWER_UP) | |
697 | clock.p2 = limit->p2.p2_fast; | |
698 | else | |
699 | clock.p2 = limit->p2.p2_slow; | |
700 | } else { | |
701 | if (target < limit->p2.dot_limit) | |
702 | clock.p2 = limit->p2.p2_slow; | |
703 | else | |
704 | clock.p2 = limit->p2.p2_fast; | |
705 | } | |
706 | ||
707 | memset (best_clock, 0, sizeof (*best_clock)); | |
708 | ||
42158660 ZY |
709 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
710 | clock.m1++) { | |
711 | for (clock.m2 = limit->m2.min; | |
712 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
713 | /* m1 is always 0 in Pineview */ |
714 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
715 | break; |
716 | for (clock.n = limit->n.min; | |
717 | clock.n <= limit->n.max; clock.n++) { | |
718 | for (clock.p1 = limit->p1.min; | |
719 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
720 | int this_err; |
721 | ||
2177832f | 722 | intel_clock(dev, refclk, &clock); |
79e53945 JB |
723 | |
724 | if (!intel_PLL_is_valid(crtc, &clock)) | |
725 | continue; | |
726 | ||
727 | this_err = abs(clock.dot - target); | |
728 | if (this_err < err) { | |
729 | *best_clock = clock; | |
730 | err = this_err; | |
731 | } | |
732 | } | |
733 | } | |
734 | } | |
735 | } | |
736 | ||
737 | return (err != target); | |
738 | } | |
739 | ||
652c393a JB |
740 | |
741 | static bool | |
742 | intel_find_best_reduced_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
743 | int target, int refclk, intel_clock_t *best_clock) | |
744 | ||
745 | { | |
746 | struct drm_device *dev = crtc->dev; | |
747 | intel_clock_t clock; | |
748 | int err = target; | |
749 | bool found = false; | |
750 | ||
751 | memcpy(&clock, best_clock, sizeof(intel_clock_t)); | |
752 | ||
753 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) { | |
754 | for (clock.m2 = limit->m2.min; clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
755 | /* m1 is always 0 in Pineview */ |
756 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
652c393a JB |
757 | break; |
758 | for (clock.n = limit->n.min; clock.n <= limit->n.max; | |
759 | clock.n++) { | |
760 | int this_err; | |
761 | ||
762 | intel_clock(dev, refclk, &clock); | |
763 | ||
764 | if (!intel_PLL_is_valid(crtc, &clock)) | |
765 | continue; | |
766 | ||
767 | this_err = abs(clock.dot - target); | |
768 | if (this_err < err) { | |
769 | *best_clock = clock; | |
770 | err = this_err; | |
771 | found = true; | |
772 | } | |
773 | } | |
774 | } | |
775 | } | |
776 | ||
777 | return found; | |
778 | } | |
779 | ||
d4906093 ML |
780 | static bool |
781 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
782 | int target, int refclk, intel_clock_t *best_clock) | |
783 | { | |
784 | struct drm_device *dev = crtc->dev; | |
785 | struct drm_i915_private *dev_priv = dev->dev_private; | |
786 | intel_clock_t clock; | |
787 | int max_n; | |
788 | bool found; | |
789 | /* approximately equals target * 0.00488 */ | |
790 | int err_most = (target >> 8) + (target >> 10); | |
791 | found = false; | |
792 | ||
793 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
794 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
795 | LVDS_CLKB_POWER_UP) | |
796 | clock.p2 = limit->p2.p2_fast; | |
797 | else | |
798 | clock.p2 = limit->p2.p2_slow; | |
799 | } else { | |
800 | if (target < limit->p2.dot_limit) | |
801 | clock.p2 = limit->p2.p2_slow; | |
802 | else | |
803 | clock.p2 = limit->p2.p2_fast; | |
804 | } | |
805 | ||
806 | memset(best_clock, 0, sizeof(*best_clock)); | |
807 | max_n = limit->n.max; | |
808 | /* based on hardware requriment prefer smaller n to precision */ | |
809 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { | |
652c393a | 810 | /* based on hardware requirment prefere larger m1,m2 */ |
d4906093 ML |
811 | for (clock.m1 = limit->m1.max; |
812 | clock.m1 >= limit->m1.min; clock.m1--) { | |
813 | for (clock.m2 = limit->m2.max; | |
814 | clock.m2 >= limit->m2.min; clock.m2--) { | |
815 | for (clock.p1 = limit->p1.max; | |
816 | clock.p1 >= limit->p1.min; clock.p1--) { | |
817 | int this_err; | |
818 | ||
2177832f | 819 | intel_clock(dev, refclk, &clock); |
d4906093 ML |
820 | if (!intel_PLL_is_valid(crtc, &clock)) |
821 | continue; | |
822 | this_err = abs(clock.dot - target) ; | |
823 | if (this_err < err_most) { | |
824 | *best_clock = clock; | |
825 | err_most = this_err; | |
826 | max_n = clock.n; | |
827 | found = true; | |
828 | } | |
829 | } | |
830 | } | |
831 | } | |
832 | } | |
2c07245f ZW |
833 | return found; |
834 | } | |
835 | ||
5eb08b69 | 836 | static bool |
f2b115e6 AJ |
837 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
838 | int target, int refclk, intel_clock_t *best_clock) | |
5eb08b69 ZW |
839 | { |
840 | struct drm_device *dev = crtc->dev; | |
841 | intel_clock_t clock; | |
842 | if (target < 200000) { | |
843 | clock.n = 1; | |
844 | clock.p1 = 2; | |
845 | clock.p2 = 10; | |
846 | clock.m1 = 12; | |
847 | clock.m2 = 9; | |
848 | } else { | |
849 | clock.n = 2; | |
850 | clock.p1 = 1; | |
851 | clock.p2 = 10; | |
852 | clock.m1 = 14; | |
853 | clock.m2 = 8; | |
854 | } | |
855 | intel_clock(dev, refclk, &clock); | |
856 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
857 | return true; | |
858 | } | |
859 | ||
2c07245f | 860 | static bool |
f2b115e6 AJ |
861 | intel_ironlake_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
862 | int target, int refclk, intel_clock_t *best_clock) | |
2c07245f ZW |
863 | { |
864 | struct drm_device *dev = crtc->dev; | |
865 | struct drm_i915_private *dev_priv = dev->dev_private; | |
866 | intel_clock_t clock; | |
2c07245f | 867 | int err_most = 47; |
4bfe6b68 | 868 | int err_min = 10000; |
2c07245f | 869 | |
32f9d658 ZW |
870 | /* eDP has only 2 clock choice, no n/m/p setting */ |
871 | if (HAS_eDP) | |
872 | return true; | |
873 | ||
5eb08b69 | 874 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) |
f2b115e6 | 875 | return intel_find_pll_ironlake_dp(limit, crtc, target, |
5eb08b69 ZW |
876 | refclk, best_clock); |
877 | ||
2c07245f | 878 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
b09aea7f | 879 | if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == |
2c07245f ZW |
880 | LVDS_CLKB_POWER_UP) |
881 | clock.p2 = limit->p2.p2_fast; | |
882 | else | |
883 | clock.p2 = limit->p2.p2_slow; | |
884 | } else { | |
885 | if (target < limit->p2.dot_limit) | |
886 | clock.p2 = limit->p2.p2_slow; | |
887 | else | |
888 | clock.p2 = limit->p2.p2_fast; | |
889 | } | |
890 | ||
891 | memset(best_clock, 0, sizeof(*best_clock)); | |
652c393a JB |
892 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { |
893 | /* based on hardware requriment prefer smaller n to precision */ | |
4bfe6b68 | 894 | for (clock.n = limit->n.min; clock.n <= limit->n.max; clock.n++) { |
652c393a JB |
895 | /* based on hardware requirment prefere larger m1,m2 */ |
896 | for (clock.m1 = limit->m1.max; | |
897 | clock.m1 >= limit->m1.min; clock.m1--) { | |
898 | for (clock.m2 = limit->m2.max; | |
899 | clock.m2 >= limit->m2.min; clock.m2--) { | |
2c07245f | 900 | int this_err; |
d4906093 | 901 | |
2c07245f ZW |
902 | intel_clock(dev, refclk, &clock); |
903 | if (!intel_PLL_is_valid(crtc, &clock)) | |
904 | continue; | |
905 | this_err = abs((10000 - (target*10000/clock.dot))); | |
906 | if (this_err < err_most) { | |
907 | *best_clock = clock; | |
2c07245f ZW |
908 | /* found on first matching */ |
909 | goto out; | |
4bfe6b68 ZW |
910 | } else if (this_err < err_min) { |
911 | *best_clock = clock; | |
912 | err_min = this_err; | |
2c07245f ZW |
913 | } |
914 | } | |
915 | } | |
916 | } | |
917 | } | |
918 | out: | |
4bfe6b68 | 919 | return true; |
d4906093 ML |
920 | } |
921 | ||
a4fc5ed6 KP |
922 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
923 | static bool | |
924 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
925 | int target, int refclk, intel_clock_t *best_clock) | |
926 | { | |
927 | intel_clock_t clock; | |
928 | if (target < 200000) { | |
a4fc5ed6 KP |
929 | clock.p1 = 2; |
930 | clock.p2 = 10; | |
b3d25495 KP |
931 | clock.n = 2; |
932 | clock.m1 = 23; | |
933 | clock.m2 = 8; | |
a4fc5ed6 | 934 | } else { |
a4fc5ed6 KP |
935 | clock.p1 = 1; |
936 | clock.p2 = 10; | |
b3d25495 KP |
937 | clock.n = 1; |
938 | clock.m1 = 14; | |
939 | clock.m2 = 2; | |
a4fc5ed6 | 940 | } |
b3d25495 KP |
941 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); |
942 | clock.p = (clock.p1 * clock.p2); | |
943 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
fe798b97 | 944 | clock.vco = 0; |
a4fc5ed6 KP |
945 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); |
946 | return true; | |
947 | } | |
948 | ||
79e53945 JB |
949 | void |
950 | intel_wait_for_vblank(struct drm_device *dev) | |
951 | { | |
952 | /* Wait for 20ms, i.e. one cycle at 50hz. */ | |
311089d3 | 953 | msleep(20); |
79e53945 JB |
954 | } |
955 | ||
80824003 JB |
956 | /* Parameters have changed, update FBC info */ |
957 | static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval) | |
958 | { | |
959 | struct drm_device *dev = crtc->dev; | |
960 | struct drm_i915_private *dev_priv = dev->dev_private; | |
961 | struct drm_framebuffer *fb = crtc->fb; | |
962 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
963 | struct drm_i915_gem_object *obj_priv = intel_fb->obj->driver_private; | |
964 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
965 | int plane, i; | |
966 | u32 fbc_ctl, fbc_ctl2; | |
967 | ||
968 | dev_priv->cfb_pitch = dev_priv->cfb_size / FBC_LL_SIZE; | |
969 | ||
970 | if (fb->pitch < dev_priv->cfb_pitch) | |
971 | dev_priv->cfb_pitch = fb->pitch; | |
972 | ||
973 | /* FBC_CTL wants 64B units */ | |
974 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; | |
975 | dev_priv->cfb_fence = obj_priv->fence_reg; | |
976 | dev_priv->cfb_plane = intel_crtc->plane; | |
977 | plane = dev_priv->cfb_plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB; | |
978 | ||
979 | /* Clear old tags */ | |
980 | for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++) | |
981 | I915_WRITE(FBC_TAG + (i * 4), 0); | |
982 | ||
983 | /* Set it up... */ | |
984 | fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | plane; | |
985 | if (obj_priv->tiling_mode != I915_TILING_NONE) | |
986 | fbc_ctl2 |= FBC_CTL_CPU_FENCE; | |
987 | I915_WRITE(FBC_CONTROL2, fbc_ctl2); | |
988 | I915_WRITE(FBC_FENCE_OFF, crtc->y); | |
989 | ||
990 | /* enable it... */ | |
991 | fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC; | |
992 | fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT; | |
993 | fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT; | |
994 | if (obj_priv->tiling_mode != I915_TILING_NONE) | |
995 | fbc_ctl |= dev_priv->cfb_fence; | |
996 | I915_WRITE(FBC_CONTROL, fbc_ctl); | |
997 | ||
28c97730 | 998 | DRM_DEBUG_KMS("enabled FBC, pitch %ld, yoff %d, plane %d, ", |
80824003 JB |
999 | dev_priv->cfb_pitch, crtc->y, dev_priv->cfb_plane); |
1000 | } | |
1001 | ||
1002 | void i8xx_disable_fbc(struct drm_device *dev) | |
1003 | { | |
1004 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1005 | u32 fbc_ctl; | |
1006 | ||
c1a1cdc1 JB |
1007 | if (!I915_HAS_FBC(dev)) |
1008 | return; | |
1009 | ||
80824003 JB |
1010 | /* Disable compression */ |
1011 | fbc_ctl = I915_READ(FBC_CONTROL); | |
1012 | fbc_ctl &= ~FBC_CTL_EN; | |
1013 | I915_WRITE(FBC_CONTROL, fbc_ctl); | |
1014 | ||
1015 | /* Wait for compressing bit to clear */ | |
1016 | while (I915_READ(FBC_STATUS) & FBC_STAT_COMPRESSING) | |
1017 | ; /* nothing */ | |
1018 | ||
1019 | intel_wait_for_vblank(dev); | |
1020 | ||
28c97730 | 1021 | DRM_DEBUG_KMS("disabled FBC\n"); |
80824003 JB |
1022 | } |
1023 | ||
1024 | static bool i8xx_fbc_enabled(struct drm_crtc *crtc) | |
1025 | { | |
1026 | struct drm_device *dev = crtc->dev; | |
1027 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1028 | ||
1029 | return I915_READ(FBC_CONTROL) & FBC_CTL_EN; | |
1030 | } | |
1031 | ||
74dff282 JB |
1032 | static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
1033 | { | |
1034 | struct drm_device *dev = crtc->dev; | |
1035 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1036 | struct drm_framebuffer *fb = crtc->fb; | |
1037 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
1038 | struct drm_i915_gem_object *obj_priv = intel_fb->obj->driver_private; | |
1039 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1040 | int plane = (intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : | |
1041 | DPFC_CTL_PLANEB); | |
1042 | unsigned long stall_watermark = 200; | |
1043 | u32 dpfc_ctl; | |
1044 | ||
1045 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; | |
1046 | dev_priv->cfb_fence = obj_priv->fence_reg; | |
1047 | dev_priv->cfb_plane = intel_crtc->plane; | |
1048 | ||
1049 | dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X; | |
1050 | if (obj_priv->tiling_mode != I915_TILING_NONE) { | |
1051 | dpfc_ctl |= DPFC_CTL_FENCE_EN | dev_priv->cfb_fence; | |
1052 | I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY); | |
1053 | } else { | |
1054 | I915_WRITE(DPFC_CHICKEN, ~DPFC_HT_MODIFY); | |
1055 | } | |
1056 | ||
1057 | I915_WRITE(DPFC_CONTROL, dpfc_ctl); | |
1058 | I915_WRITE(DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | | |
1059 | (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | | |
1060 | (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); | |
1061 | I915_WRITE(DPFC_FENCE_YOFF, crtc->y); | |
1062 | ||
1063 | /* enable it... */ | |
1064 | I915_WRITE(DPFC_CONTROL, I915_READ(DPFC_CONTROL) | DPFC_CTL_EN); | |
1065 | ||
28c97730 | 1066 | DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane); |
74dff282 JB |
1067 | } |
1068 | ||
1069 | void g4x_disable_fbc(struct drm_device *dev) | |
1070 | { | |
1071 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1072 | u32 dpfc_ctl; | |
1073 | ||
1074 | /* Disable compression */ | |
1075 | dpfc_ctl = I915_READ(DPFC_CONTROL); | |
1076 | dpfc_ctl &= ~DPFC_CTL_EN; | |
1077 | I915_WRITE(DPFC_CONTROL, dpfc_ctl); | |
1078 | intel_wait_for_vblank(dev); | |
1079 | ||
28c97730 | 1080 | DRM_DEBUG_KMS("disabled FBC\n"); |
74dff282 JB |
1081 | } |
1082 | ||
1083 | static bool g4x_fbc_enabled(struct drm_crtc *crtc) | |
1084 | { | |
1085 | struct drm_device *dev = crtc->dev; | |
1086 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1087 | ||
1088 | return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN; | |
1089 | } | |
1090 | ||
80824003 JB |
1091 | /** |
1092 | * intel_update_fbc - enable/disable FBC as needed | |
1093 | * @crtc: CRTC to point the compressor at | |
1094 | * @mode: mode in use | |
1095 | * | |
1096 | * Set up the framebuffer compression hardware at mode set time. We | |
1097 | * enable it if possible: | |
1098 | * - plane A only (on pre-965) | |
1099 | * - no pixel mulitply/line duplication | |
1100 | * - no alpha buffer discard | |
1101 | * - no dual wide | |
1102 | * - framebuffer <= 2048 in width, 1536 in height | |
1103 | * | |
1104 | * We can't assume that any compression will take place (worst case), | |
1105 | * so the compressed buffer has to be the same size as the uncompressed | |
1106 | * one. It also must reside (along with the line length buffer) in | |
1107 | * stolen memory. | |
1108 | * | |
1109 | * We need to enable/disable FBC on a global basis. | |
1110 | */ | |
1111 | static void intel_update_fbc(struct drm_crtc *crtc, | |
1112 | struct drm_display_mode *mode) | |
1113 | { | |
1114 | struct drm_device *dev = crtc->dev; | |
1115 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1116 | struct drm_framebuffer *fb = crtc->fb; | |
1117 | struct intel_framebuffer *intel_fb; | |
1118 | struct drm_i915_gem_object *obj_priv; | |
1119 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1120 | int plane = intel_crtc->plane; | |
1121 | ||
1122 | if (!i915_powersave) | |
1123 | return; | |
1124 | ||
e70236a8 JB |
1125 | if (!dev_priv->display.fbc_enabled || |
1126 | !dev_priv->display.enable_fbc || | |
1127 | !dev_priv->display.disable_fbc) | |
1128 | return; | |
1129 | ||
80824003 JB |
1130 | if (!crtc->fb) |
1131 | return; | |
1132 | ||
1133 | intel_fb = to_intel_framebuffer(fb); | |
1134 | obj_priv = intel_fb->obj->driver_private; | |
1135 | ||
1136 | /* | |
1137 | * If FBC is already on, we just have to verify that we can | |
1138 | * keep it that way... | |
1139 | * Need to disable if: | |
1140 | * - changing FBC params (stride, fence, mode) | |
1141 | * - new fb is too large to fit in compressed buffer | |
1142 | * - going to an unsupported config (interlace, pixel multiply, etc.) | |
1143 | */ | |
1144 | if (intel_fb->obj->size > dev_priv->cfb_size) { | |
28c97730 ZY |
1145 | DRM_DEBUG_KMS("framebuffer too large, disabling " |
1146 | "compression\n"); | |
80824003 JB |
1147 | goto out_disable; |
1148 | } | |
1149 | if ((mode->flags & DRM_MODE_FLAG_INTERLACE) || | |
1150 | (mode->flags & DRM_MODE_FLAG_DBLSCAN)) { | |
28c97730 ZY |
1151 | DRM_DEBUG_KMS("mode incompatible with compression, " |
1152 | "disabling\n"); | |
80824003 JB |
1153 | goto out_disable; |
1154 | } | |
1155 | if ((mode->hdisplay > 2048) || | |
1156 | (mode->vdisplay > 1536)) { | |
28c97730 | 1157 | DRM_DEBUG_KMS("mode too large for compression, disabling\n"); |
80824003 JB |
1158 | goto out_disable; |
1159 | } | |
74dff282 | 1160 | if ((IS_I915GM(dev) || IS_I945GM(dev)) && plane != 0) { |
28c97730 | 1161 | DRM_DEBUG_KMS("plane not 0, disabling compression\n"); |
80824003 JB |
1162 | goto out_disable; |
1163 | } | |
1164 | if (obj_priv->tiling_mode != I915_TILING_X) { | |
28c97730 | 1165 | DRM_DEBUG_KMS("framebuffer not tiled, disabling compression\n"); |
80824003 JB |
1166 | goto out_disable; |
1167 | } | |
1168 | ||
e70236a8 | 1169 | if (dev_priv->display.fbc_enabled(crtc)) { |
80824003 JB |
1170 | /* We can re-enable it in this case, but need to update pitch */ |
1171 | if (fb->pitch > dev_priv->cfb_pitch) | |
e70236a8 | 1172 | dev_priv->display.disable_fbc(dev); |
80824003 | 1173 | if (obj_priv->fence_reg != dev_priv->cfb_fence) |
e70236a8 | 1174 | dev_priv->display.disable_fbc(dev); |
80824003 | 1175 | if (plane != dev_priv->cfb_plane) |
e70236a8 | 1176 | dev_priv->display.disable_fbc(dev); |
80824003 JB |
1177 | } |
1178 | ||
e70236a8 | 1179 | if (!dev_priv->display.fbc_enabled(crtc)) { |
80824003 | 1180 | /* Now try to turn it back on if possible */ |
e70236a8 | 1181 | dev_priv->display.enable_fbc(crtc, 500); |
80824003 JB |
1182 | } |
1183 | ||
1184 | return; | |
1185 | ||
1186 | out_disable: | |
28c97730 | 1187 | DRM_DEBUG_KMS("unsupported config, disabling FBC\n"); |
80824003 | 1188 | /* Multiple disables should be harmless */ |
e70236a8 JB |
1189 | if (dev_priv->display.fbc_enabled(crtc)) |
1190 | dev_priv->display.disable_fbc(dev); | |
80824003 JB |
1191 | } |
1192 | ||
6b95a207 KH |
1193 | static int |
1194 | intel_pin_and_fence_fb_obj(struct drm_device *dev, struct drm_gem_object *obj) | |
1195 | { | |
1196 | struct drm_i915_gem_object *obj_priv = obj->driver_private; | |
1197 | u32 alignment; | |
1198 | int ret; | |
1199 | ||
1200 | switch (obj_priv->tiling_mode) { | |
1201 | case I915_TILING_NONE: | |
1202 | alignment = 64 * 1024; | |
1203 | break; | |
1204 | case I915_TILING_X: | |
1205 | /* pin() will align the object as required by fence */ | |
1206 | alignment = 0; | |
1207 | break; | |
1208 | case I915_TILING_Y: | |
1209 | /* FIXME: Is this true? */ | |
1210 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
1211 | return -EINVAL; | |
1212 | default: | |
1213 | BUG(); | |
1214 | } | |
1215 | ||
6b95a207 KH |
1216 | ret = i915_gem_object_pin(obj, alignment); |
1217 | if (ret != 0) | |
1218 | return ret; | |
1219 | ||
1220 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1221 | * fence, whereas 965+ only requires a fence if using | |
1222 | * framebuffer compression. For simplicity, we always install | |
1223 | * a fence as the cost is not that onerous. | |
1224 | */ | |
1225 | if (obj_priv->fence_reg == I915_FENCE_REG_NONE && | |
1226 | obj_priv->tiling_mode != I915_TILING_NONE) { | |
1227 | ret = i915_gem_object_get_fence_reg(obj); | |
1228 | if (ret != 0) { | |
1229 | i915_gem_object_unpin(obj); | |
1230 | return ret; | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | return 0; | |
1235 | } | |
1236 | ||
5c3b82e2 | 1237 | static int |
3c4fdcfb KH |
1238 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
1239 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
1240 | { |
1241 | struct drm_device *dev = crtc->dev; | |
1242 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1243 | struct drm_i915_master_private *master_priv; | |
1244 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1245 | struct intel_framebuffer *intel_fb; | |
1246 | struct drm_i915_gem_object *obj_priv; | |
1247 | struct drm_gem_object *obj; | |
1248 | int pipe = intel_crtc->pipe; | |
80824003 | 1249 | int plane = intel_crtc->plane; |
79e53945 | 1250 | unsigned long Start, Offset; |
80824003 JB |
1251 | int dspbase = (plane == 0 ? DSPAADDR : DSPBADDR); |
1252 | int dspsurf = (plane == 0 ? DSPASURF : DSPBSURF); | |
1253 | int dspstride = (plane == 0) ? DSPASTRIDE : DSPBSTRIDE; | |
1254 | int dsptileoff = (plane == 0 ? DSPATILEOFF : DSPBTILEOFF); | |
1255 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; | |
6b95a207 | 1256 | u32 dspcntr; |
5c3b82e2 | 1257 | int ret; |
79e53945 JB |
1258 | |
1259 | /* no fb bound */ | |
1260 | if (!crtc->fb) { | |
28c97730 | 1261 | DRM_DEBUG_KMS("No FB bound\n"); |
5c3b82e2 CW |
1262 | return 0; |
1263 | } | |
1264 | ||
80824003 | 1265 | switch (plane) { |
5c3b82e2 CW |
1266 | case 0: |
1267 | case 1: | |
1268 | break; | |
1269 | default: | |
80824003 | 1270 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); |
5c3b82e2 | 1271 | return -EINVAL; |
79e53945 JB |
1272 | } |
1273 | ||
1274 | intel_fb = to_intel_framebuffer(crtc->fb); | |
79e53945 JB |
1275 | obj = intel_fb->obj; |
1276 | obj_priv = obj->driver_private; | |
1277 | ||
5c3b82e2 | 1278 | mutex_lock(&dev->struct_mutex); |
6b95a207 | 1279 | ret = intel_pin_and_fence_fb_obj(dev, obj); |
5c3b82e2 CW |
1280 | if (ret != 0) { |
1281 | mutex_unlock(&dev->struct_mutex); | |
1282 | return ret; | |
1283 | } | |
79e53945 | 1284 | |
8c4b8c3f | 1285 | ret = i915_gem_object_set_to_gtt_domain(obj, 1); |
5c3b82e2 | 1286 | if (ret != 0) { |
8c4b8c3f | 1287 | i915_gem_object_unpin(obj); |
5c3b82e2 CW |
1288 | mutex_unlock(&dev->struct_mutex); |
1289 | return ret; | |
1290 | } | |
79e53945 JB |
1291 | |
1292 | dspcntr = I915_READ(dspcntr_reg); | |
712531bf JB |
1293 | /* Mask out pixel format bits in case we change it */ |
1294 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
79e53945 JB |
1295 | switch (crtc->fb->bits_per_pixel) { |
1296 | case 8: | |
1297 | dspcntr |= DISPPLANE_8BPP; | |
1298 | break; | |
1299 | case 16: | |
1300 | if (crtc->fb->depth == 15) | |
1301 | dspcntr |= DISPPLANE_15_16BPP; | |
1302 | else | |
1303 | dspcntr |= DISPPLANE_16BPP; | |
1304 | break; | |
1305 | case 24: | |
1306 | case 32: | |
a4f45cf1 KH |
1307 | if (crtc->fb->depth == 30) |
1308 | dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA; | |
1309 | else | |
1310 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
79e53945 JB |
1311 | break; |
1312 | default: | |
1313 | DRM_ERROR("Unknown color depth\n"); | |
8c4b8c3f | 1314 | i915_gem_object_unpin(obj); |
5c3b82e2 CW |
1315 | mutex_unlock(&dev->struct_mutex); |
1316 | return -EINVAL; | |
79e53945 | 1317 | } |
f544847f JB |
1318 | if (IS_I965G(dev)) { |
1319 | if (obj_priv->tiling_mode != I915_TILING_NONE) | |
1320 | dspcntr |= DISPPLANE_TILED; | |
1321 | else | |
1322 | dspcntr &= ~DISPPLANE_TILED; | |
1323 | } | |
1324 | ||
f2b115e6 | 1325 | if (IS_IRONLAKE(dev)) |
553bd149 ZW |
1326 | /* must disable */ |
1327 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
1328 | ||
79e53945 JB |
1329 | I915_WRITE(dspcntr_reg, dspcntr); |
1330 | ||
5c3b82e2 CW |
1331 | Start = obj_priv->gtt_offset; |
1332 | Offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8); | |
1333 | ||
28c97730 | 1334 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d\n", Start, Offset, x, y); |
5c3b82e2 | 1335 | I915_WRITE(dspstride, crtc->fb->pitch); |
79e53945 JB |
1336 | if (IS_I965G(dev)) { |
1337 | I915_WRITE(dspbase, Offset); | |
1338 | I915_READ(dspbase); | |
1339 | I915_WRITE(dspsurf, Start); | |
1340 | I915_READ(dspsurf); | |
f544847f | 1341 | I915_WRITE(dsptileoff, (y << 16) | x); |
79e53945 JB |
1342 | } else { |
1343 | I915_WRITE(dspbase, Start + Offset); | |
1344 | I915_READ(dspbase); | |
1345 | } | |
1346 | ||
74dff282 | 1347 | if ((IS_I965G(dev) || plane == 0)) |
edb81956 JB |
1348 | intel_update_fbc(crtc, &crtc->mode); |
1349 | ||
3c4fdcfb KH |
1350 | intel_wait_for_vblank(dev); |
1351 | ||
1352 | if (old_fb) { | |
1353 | intel_fb = to_intel_framebuffer(old_fb); | |
652c393a | 1354 | obj_priv = intel_fb->obj->driver_private; |
3c4fdcfb KH |
1355 | i915_gem_object_unpin(intel_fb->obj); |
1356 | } | |
652c393a JB |
1357 | intel_increase_pllclock(crtc, true); |
1358 | ||
5c3b82e2 | 1359 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
1360 | |
1361 | if (!dev->primary->master) | |
5c3b82e2 | 1362 | return 0; |
79e53945 JB |
1363 | |
1364 | master_priv = dev->primary->master->driver_priv; | |
1365 | if (!master_priv->sarea_priv) | |
5c3b82e2 | 1366 | return 0; |
79e53945 | 1367 | |
5c3b82e2 | 1368 | if (pipe) { |
79e53945 JB |
1369 | master_priv->sarea_priv->pipeB_x = x; |
1370 | master_priv->sarea_priv->pipeB_y = y; | |
5c3b82e2 CW |
1371 | } else { |
1372 | master_priv->sarea_priv->pipeA_x = x; | |
1373 | master_priv->sarea_priv->pipeA_y = y; | |
79e53945 | 1374 | } |
5c3b82e2 CW |
1375 | |
1376 | return 0; | |
79e53945 JB |
1377 | } |
1378 | ||
24f119c7 ZW |
1379 | /* Disable the VGA plane that we never use */ |
1380 | static void i915_disable_vga (struct drm_device *dev) | |
1381 | { | |
1382 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1383 | u8 sr1; | |
1384 | u32 vga_reg; | |
1385 | ||
f2b115e6 | 1386 | if (IS_IRONLAKE(dev)) |
24f119c7 ZW |
1387 | vga_reg = CPU_VGACNTRL; |
1388 | else | |
1389 | vga_reg = VGACNTRL; | |
1390 | ||
1391 | if (I915_READ(vga_reg) & VGA_DISP_DISABLE) | |
1392 | return; | |
1393 | ||
1394 | I915_WRITE8(VGA_SR_INDEX, 1); | |
1395 | sr1 = I915_READ8(VGA_SR_DATA); | |
1396 | I915_WRITE8(VGA_SR_DATA, sr1 | (1 << 5)); | |
1397 | udelay(100); | |
1398 | ||
1399 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
1400 | } | |
1401 | ||
f2b115e6 | 1402 | static void ironlake_disable_pll_edp (struct drm_crtc *crtc) |
32f9d658 ZW |
1403 | { |
1404 | struct drm_device *dev = crtc->dev; | |
1405 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1406 | u32 dpa_ctl; | |
1407 | ||
28c97730 | 1408 | DRM_DEBUG_KMS("\n"); |
32f9d658 ZW |
1409 | dpa_ctl = I915_READ(DP_A); |
1410 | dpa_ctl &= ~DP_PLL_ENABLE; | |
1411 | I915_WRITE(DP_A, dpa_ctl); | |
1412 | } | |
1413 | ||
f2b115e6 | 1414 | static void ironlake_enable_pll_edp (struct drm_crtc *crtc) |
32f9d658 ZW |
1415 | { |
1416 | struct drm_device *dev = crtc->dev; | |
1417 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1418 | u32 dpa_ctl; | |
1419 | ||
1420 | dpa_ctl = I915_READ(DP_A); | |
1421 | dpa_ctl |= DP_PLL_ENABLE; | |
1422 | I915_WRITE(DP_A, dpa_ctl); | |
1423 | udelay(200); | |
1424 | } | |
1425 | ||
1426 | ||
f2b115e6 | 1427 | static void ironlake_set_pll_edp (struct drm_crtc *crtc, int clock) |
32f9d658 ZW |
1428 | { |
1429 | struct drm_device *dev = crtc->dev; | |
1430 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1431 | u32 dpa_ctl; | |
1432 | ||
28c97730 | 1433 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
32f9d658 ZW |
1434 | dpa_ctl = I915_READ(DP_A); |
1435 | dpa_ctl &= ~DP_PLL_FREQ_MASK; | |
1436 | ||
1437 | if (clock < 200000) { | |
1438 | u32 temp; | |
1439 | dpa_ctl |= DP_PLL_FREQ_160MHZ; | |
1440 | /* workaround for 160Mhz: | |
1441 | 1) program 0x4600c bits 15:0 = 0x8124 | |
1442 | 2) program 0x46010 bit 0 = 1 | |
1443 | 3) program 0x46034 bit 24 = 1 | |
1444 | 4) program 0x64000 bit 14 = 1 | |
1445 | */ | |
1446 | temp = I915_READ(0x4600c); | |
1447 | temp &= 0xffff0000; | |
1448 | I915_WRITE(0x4600c, temp | 0x8124); | |
1449 | ||
1450 | temp = I915_READ(0x46010); | |
1451 | I915_WRITE(0x46010, temp | 1); | |
1452 | ||
1453 | temp = I915_READ(0x46034); | |
1454 | I915_WRITE(0x46034, temp | (1 << 24)); | |
1455 | } else { | |
1456 | dpa_ctl |= DP_PLL_FREQ_270MHZ; | |
1457 | } | |
1458 | I915_WRITE(DP_A, dpa_ctl); | |
1459 | ||
1460 | udelay(500); | |
1461 | } | |
1462 | ||
f2b115e6 | 1463 | static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) |
2c07245f ZW |
1464 | { |
1465 | struct drm_device *dev = crtc->dev; | |
1466 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1467 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1468 | int pipe = intel_crtc->pipe; | |
7662c8bd | 1469 | int plane = intel_crtc->plane; |
2c07245f ZW |
1470 | int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; |
1471 | int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; | |
1472 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; | |
1473 | int dspbase_reg = (plane == 0) ? DSPAADDR : DSPBADDR; | |
1474 | int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; | |
1475 | int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; | |
1476 | int fdi_rx_iir_reg = (pipe == 0) ? FDI_RXA_IIR : FDI_RXB_IIR; | |
1477 | int fdi_rx_imr_reg = (pipe == 0) ? FDI_RXA_IMR : FDI_RXB_IMR; | |
1478 | int transconf_reg = (pipe == 0) ? TRANSACONF : TRANSBCONF; | |
1479 | int pf_ctl_reg = (pipe == 0) ? PFA_CTL_1 : PFB_CTL_1; | |
249c0e64 | 1480 | int pf_win_size = (pipe == 0) ? PFA_WIN_SZ : PFB_WIN_SZ; |
8dd81a38 | 1481 | int pf_win_pos = (pipe == 0) ? PFA_WIN_POS : PFB_WIN_POS; |
2c07245f ZW |
1482 | int cpu_htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B; |
1483 | int cpu_hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B; | |
1484 | int cpu_hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B; | |
1485 | int cpu_vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B; | |
1486 | int cpu_vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B; | |
1487 | int cpu_vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B; | |
1488 | int trans_htot_reg = (pipe == 0) ? TRANS_HTOTAL_A : TRANS_HTOTAL_B; | |
1489 | int trans_hblank_reg = (pipe == 0) ? TRANS_HBLANK_A : TRANS_HBLANK_B; | |
1490 | int trans_hsync_reg = (pipe == 0) ? TRANS_HSYNC_A : TRANS_HSYNC_B; | |
1491 | int trans_vtot_reg = (pipe == 0) ? TRANS_VTOTAL_A : TRANS_VTOTAL_B; | |
1492 | int trans_vblank_reg = (pipe == 0) ? TRANS_VBLANK_A : TRANS_VBLANK_B; | |
1493 | int trans_vsync_reg = (pipe == 0) ? TRANS_VSYNC_A : TRANS_VSYNC_B; | |
1494 | u32 temp; | |
249c0e64 | 1495 | int tries = 5, j, n; |
8faf3b31 ZY |
1496 | u32 pipe_bpc; |
1497 | ||
1498 | temp = I915_READ(pipeconf_reg); | |
1499 | pipe_bpc = temp & PIPE_BPC_MASK; | |
79e53945 | 1500 | |
2c07245f ZW |
1501 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
1502 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
1503 | */ | |
1504 | switch (mode) { | |
1505 | case DRM_MODE_DPMS_ON: | |
1506 | case DRM_MODE_DPMS_STANDBY: | |
1507 | case DRM_MODE_DPMS_SUSPEND: | |
28c97730 | 1508 | DRM_DEBUG_KMS("crtc %d dpms on\n", pipe); |
1b3c7a47 ZW |
1509 | |
1510 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1511 | temp = I915_READ(PCH_LVDS); | |
1512 | if ((temp & LVDS_PORT_EN) == 0) { | |
1513 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
1514 | POSTING_READ(PCH_LVDS); | |
1515 | } | |
1516 | } | |
1517 | ||
32f9d658 ZW |
1518 | if (HAS_eDP) { |
1519 | /* enable eDP PLL */ | |
f2b115e6 | 1520 | ironlake_enable_pll_edp(crtc); |
32f9d658 ZW |
1521 | } else { |
1522 | /* enable PCH DPLL */ | |
1523 | temp = I915_READ(pch_dpll_reg); | |
1524 | if ((temp & DPLL_VCO_ENABLE) == 0) { | |
1525 | I915_WRITE(pch_dpll_reg, temp | DPLL_VCO_ENABLE); | |
1526 | I915_READ(pch_dpll_reg); | |
1527 | } | |
2c07245f | 1528 | |
32f9d658 ZW |
1529 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
1530 | temp = I915_READ(fdi_rx_reg); | |
8faf3b31 ZY |
1531 | /* |
1532 | * make the BPC in FDI Rx be consistent with that in | |
1533 | * pipeconf reg. | |
1534 | */ | |
1535 | temp &= ~(0x7 << 16); | |
1536 | temp |= (pipe_bpc << 11); | |
32f9d658 ZW |
1537 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE | |
1538 | FDI_SEL_PCDCLK | | |
1539 | FDI_DP_PORT_WIDTH_X4); /* default 4 lanes */ | |
1540 | I915_READ(fdi_rx_reg); | |
1541 | udelay(200); | |
1542 | ||
f2b115e6 | 1543 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
32f9d658 ZW |
1544 | temp = I915_READ(fdi_tx_reg); |
1545 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
1546 | I915_WRITE(fdi_tx_reg, temp | FDI_TX_PLL_ENABLE); | |
1547 | I915_READ(fdi_tx_reg); | |
1548 | udelay(100); | |
1549 | } | |
2c07245f ZW |
1550 | } |
1551 | ||
8dd81a38 ZW |
1552 | /* Enable panel fitting for LVDS */ |
1553 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1554 | temp = I915_READ(pf_ctl_reg); | |
b1f60b70 | 1555 | I915_WRITE(pf_ctl_reg, temp | PF_ENABLE | PF_FILTER_MED_3x3); |
8dd81a38 ZW |
1556 | |
1557 | /* currently full aspect */ | |
1558 | I915_WRITE(pf_win_pos, 0); | |
1559 | ||
1560 | I915_WRITE(pf_win_size, | |
1561 | (dev_priv->panel_fixed_mode->hdisplay << 16) | | |
1562 | (dev_priv->panel_fixed_mode->vdisplay)); | |
1563 | } | |
1564 | ||
2c07245f ZW |
1565 | /* Enable CPU pipe */ |
1566 | temp = I915_READ(pipeconf_reg); | |
1567 | if ((temp & PIPEACONF_ENABLE) == 0) { | |
1568 | I915_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE); | |
1569 | I915_READ(pipeconf_reg); | |
1570 | udelay(100); | |
1571 | } | |
1572 | ||
1573 | /* configure and enable CPU plane */ | |
1574 | temp = I915_READ(dspcntr_reg); | |
1575 | if ((temp & DISPLAY_PLANE_ENABLE) == 0) { | |
1576 | I915_WRITE(dspcntr_reg, temp | DISPLAY_PLANE_ENABLE); | |
1577 | /* Flush the plane changes */ | |
1578 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
1579 | } | |
1580 | ||
32f9d658 ZW |
1581 | if (!HAS_eDP) { |
1582 | /* enable CPU FDI TX and PCH FDI RX */ | |
1583 | temp = I915_READ(fdi_tx_reg); | |
1584 | temp |= FDI_TX_ENABLE; | |
1585 | temp |= FDI_DP_PORT_WIDTH_X4; /* default */ | |
1586 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1587 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1588 | I915_WRITE(fdi_tx_reg, temp); | |
1589 | I915_READ(fdi_tx_reg); | |
2c07245f | 1590 | |
32f9d658 ZW |
1591 | temp = I915_READ(fdi_rx_reg); |
1592 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1593 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1594 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENABLE); | |
1595 | I915_READ(fdi_rx_reg); | |
2c07245f | 1596 | |
32f9d658 | 1597 | udelay(150); |
2c07245f | 1598 | |
32f9d658 ZW |
1599 | /* Train FDI. */ |
1600 | /* umask FDI RX Interrupt symbol_lock and bit_lock bit | |
1601 | for train result */ | |
1602 | temp = I915_READ(fdi_rx_imr_reg); | |
1603 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
1604 | temp &= ~FDI_RX_BIT_LOCK; | |
1605 | I915_WRITE(fdi_rx_imr_reg, temp); | |
1606 | I915_READ(fdi_rx_imr_reg); | |
1607 | udelay(150); | |
2c07245f | 1608 | |
32f9d658 | 1609 | temp = I915_READ(fdi_rx_iir_reg); |
28c97730 | 1610 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2c07245f | 1611 | |
32f9d658 ZW |
1612 | if ((temp & FDI_RX_BIT_LOCK) == 0) { |
1613 | for (j = 0; j < tries; j++) { | |
1614 | temp = I915_READ(fdi_rx_iir_reg); | |
28c97730 ZY |
1615 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", |
1616 | temp); | |
32f9d658 ZW |
1617 | if (temp & FDI_RX_BIT_LOCK) |
1618 | break; | |
1619 | udelay(200); | |
1620 | } | |
1621 | if (j != tries) | |
1622 | I915_WRITE(fdi_rx_iir_reg, | |
1623 | temp | FDI_RX_BIT_LOCK); | |
1624 | else | |
28c97730 | 1625 | DRM_DEBUG_KMS("train 1 fail\n"); |
32f9d658 | 1626 | } else { |
2c07245f ZW |
1627 | I915_WRITE(fdi_rx_iir_reg, |
1628 | temp | FDI_RX_BIT_LOCK); | |
28c97730 | 1629 | DRM_DEBUG_KMS("train 1 ok 2!\n"); |
32f9d658 ZW |
1630 | } |
1631 | temp = I915_READ(fdi_tx_reg); | |
1632 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1633 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
1634 | I915_WRITE(fdi_tx_reg, temp); | |
1635 | ||
1636 | temp = I915_READ(fdi_rx_reg); | |
1637 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1638 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
1639 | I915_WRITE(fdi_rx_reg, temp); | |
2c07245f | 1640 | |
32f9d658 | 1641 | udelay(150); |
2c07245f | 1642 | |
32f9d658 | 1643 | temp = I915_READ(fdi_rx_iir_reg); |
28c97730 | 1644 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2c07245f | 1645 | |
32f9d658 ZW |
1646 | if ((temp & FDI_RX_SYMBOL_LOCK) == 0) { |
1647 | for (j = 0; j < tries; j++) { | |
1648 | temp = I915_READ(fdi_rx_iir_reg); | |
28c97730 ZY |
1649 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", |
1650 | temp); | |
32f9d658 ZW |
1651 | if (temp & FDI_RX_SYMBOL_LOCK) |
1652 | break; | |
1653 | udelay(200); | |
1654 | } | |
1655 | if (j != tries) { | |
1656 | I915_WRITE(fdi_rx_iir_reg, | |
1657 | temp | FDI_RX_SYMBOL_LOCK); | |
28c97730 | 1658 | DRM_DEBUG_KMS("train 2 ok 1!\n"); |
32f9d658 | 1659 | } else |
28c97730 | 1660 | DRM_DEBUG_KMS("train 2 fail\n"); |
32f9d658 | 1661 | } else { |
2c07245f ZW |
1662 | I915_WRITE(fdi_rx_iir_reg, |
1663 | temp | FDI_RX_SYMBOL_LOCK); | |
28c97730 | 1664 | DRM_DEBUG_KMS("train 2 ok 2!\n"); |
32f9d658 | 1665 | } |
28c97730 | 1666 | DRM_DEBUG_KMS("train done\n"); |
2c07245f | 1667 | |
32f9d658 ZW |
1668 | /* set transcoder timing */ |
1669 | I915_WRITE(trans_htot_reg, I915_READ(cpu_htot_reg)); | |
1670 | I915_WRITE(trans_hblank_reg, I915_READ(cpu_hblank_reg)); | |
1671 | I915_WRITE(trans_hsync_reg, I915_READ(cpu_hsync_reg)); | |
2c07245f | 1672 | |
32f9d658 ZW |
1673 | I915_WRITE(trans_vtot_reg, I915_READ(cpu_vtot_reg)); |
1674 | I915_WRITE(trans_vblank_reg, I915_READ(cpu_vblank_reg)); | |
1675 | I915_WRITE(trans_vsync_reg, I915_READ(cpu_vsync_reg)); | |
2c07245f | 1676 | |
32f9d658 ZW |
1677 | /* enable PCH transcoder */ |
1678 | temp = I915_READ(transconf_reg); | |
8faf3b31 ZY |
1679 | /* |
1680 | * make the BPC in transcoder be consistent with | |
1681 | * that in pipeconf reg. | |
1682 | */ | |
1683 | temp &= ~PIPE_BPC_MASK; | |
1684 | temp |= pipe_bpc; | |
32f9d658 ZW |
1685 | I915_WRITE(transconf_reg, temp | TRANS_ENABLE); |
1686 | I915_READ(transconf_reg); | |
2c07245f | 1687 | |
32f9d658 ZW |
1688 | while ((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) == 0) |
1689 | ; | |
2c07245f | 1690 | |
32f9d658 | 1691 | /* enable normal */ |
2c07245f | 1692 | |
32f9d658 ZW |
1693 | temp = I915_READ(fdi_tx_reg); |
1694 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1695 | I915_WRITE(fdi_tx_reg, temp | FDI_LINK_TRAIN_NONE | | |
1696 | FDI_TX_ENHANCE_FRAME_ENABLE); | |
1697 | I915_READ(fdi_tx_reg); | |
2c07245f | 1698 | |
32f9d658 ZW |
1699 | temp = I915_READ(fdi_rx_reg); |
1700 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1701 | I915_WRITE(fdi_rx_reg, temp | FDI_LINK_TRAIN_NONE | | |
1702 | FDI_RX_ENHANCE_FRAME_ENABLE); | |
1703 | I915_READ(fdi_rx_reg); | |
2c07245f | 1704 | |
32f9d658 ZW |
1705 | /* wait one idle pattern time */ |
1706 | udelay(100); | |
1707 | ||
1708 | } | |
2c07245f ZW |
1709 | |
1710 | intel_crtc_load_lut(crtc); | |
1711 | ||
1712 | break; | |
1713 | case DRM_MODE_DPMS_OFF: | |
28c97730 | 1714 | DRM_DEBUG_KMS("crtc %d dpms off\n", pipe); |
2c07245f ZW |
1715 | |
1716 | /* Disable display plane */ | |
1717 | temp = I915_READ(dspcntr_reg); | |
1718 | if ((temp & DISPLAY_PLANE_ENABLE) != 0) { | |
1719 | I915_WRITE(dspcntr_reg, temp & ~DISPLAY_PLANE_ENABLE); | |
1720 | /* Flush the plane changes */ | |
1721 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
1722 | I915_READ(dspbase_reg); | |
1723 | } | |
1724 | ||
1b3c7a47 ZW |
1725 | i915_disable_vga(dev); |
1726 | ||
2c07245f ZW |
1727 | /* disable cpu pipe, disable after all planes disabled */ |
1728 | temp = I915_READ(pipeconf_reg); | |
1729 | if ((temp & PIPEACONF_ENABLE) != 0) { | |
1730 | I915_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE); | |
1731 | I915_READ(pipeconf_reg); | |
249c0e64 | 1732 | n = 0; |
2c07245f | 1733 | /* wait for cpu pipe off, pipe state */ |
249c0e64 ZW |
1734 | while ((I915_READ(pipeconf_reg) & I965_PIPECONF_ACTIVE) != 0) { |
1735 | n++; | |
1736 | if (n < 60) { | |
1737 | udelay(500); | |
1738 | continue; | |
1739 | } else { | |
28c97730 ZY |
1740 | DRM_DEBUG_KMS("pipe %d off delay\n", |
1741 | pipe); | |
249c0e64 ZW |
1742 | break; |
1743 | } | |
1744 | } | |
2c07245f | 1745 | } else |
28c97730 | 1746 | DRM_DEBUG_KMS("crtc %d is disabled\n", pipe); |
2c07245f | 1747 | |
1b3c7a47 ZW |
1748 | udelay(100); |
1749 | ||
1750 | /* Disable PF */ | |
1751 | temp = I915_READ(pf_ctl_reg); | |
1752 | if ((temp & PF_ENABLE) != 0) { | |
1753 | I915_WRITE(pf_ctl_reg, temp & ~PF_ENABLE); | |
1754 | I915_READ(pf_ctl_reg); | |
32f9d658 | 1755 | } |
1b3c7a47 | 1756 | I915_WRITE(pf_win_size, 0); |
32f9d658 | 1757 | |
2c07245f ZW |
1758 | /* disable CPU FDI tx and PCH FDI rx */ |
1759 | temp = I915_READ(fdi_tx_reg); | |
1760 | I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_ENABLE); | |
1761 | I915_READ(fdi_tx_reg); | |
1762 | ||
1763 | temp = I915_READ(fdi_rx_reg); | |
8faf3b31 ZY |
1764 | /* BPC in FDI rx is consistent with that in pipeconf */ |
1765 | temp &= ~(0x07 << 16); | |
1766 | temp |= (pipe_bpc << 11); | |
2c07245f ZW |
1767 | I915_WRITE(fdi_rx_reg, temp & ~FDI_RX_ENABLE); |
1768 | I915_READ(fdi_rx_reg); | |
1769 | ||
249c0e64 ZW |
1770 | udelay(100); |
1771 | ||
2c07245f ZW |
1772 | /* still set train pattern 1 */ |
1773 | temp = I915_READ(fdi_tx_reg); | |
1774 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1775 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1776 | I915_WRITE(fdi_tx_reg, temp); | |
1777 | ||
1778 | temp = I915_READ(fdi_rx_reg); | |
1779 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1780 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1781 | I915_WRITE(fdi_rx_reg, temp); | |
1782 | ||
249c0e64 ZW |
1783 | udelay(100); |
1784 | ||
1b3c7a47 ZW |
1785 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
1786 | temp = I915_READ(PCH_LVDS); | |
1787 | I915_WRITE(PCH_LVDS, temp & ~LVDS_PORT_EN); | |
1788 | I915_READ(PCH_LVDS); | |
1789 | udelay(100); | |
1790 | } | |
1791 | ||
2c07245f ZW |
1792 | /* disable PCH transcoder */ |
1793 | temp = I915_READ(transconf_reg); | |
1794 | if ((temp & TRANS_ENABLE) != 0) { | |
1795 | I915_WRITE(transconf_reg, temp & ~TRANS_ENABLE); | |
1796 | I915_READ(transconf_reg); | |
249c0e64 | 1797 | n = 0; |
2c07245f | 1798 | /* wait for PCH transcoder off, transcoder state */ |
249c0e64 ZW |
1799 | while ((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) != 0) { |
1800 | n++; | |
1801 | if (n < 60) { | |
1802 | udelay(500); | |
1803 | continue; | |
1804 | } else { | |
28c97730 ZY |
1805 | DRM_DEBUG_KMS("transcoder %d off " |
1806 | "delay\n", pipe); | |
249c0e64 ZW |
1807 | break; |
1808 | } | |
1809 | } | |
2c07245f | 1810 | } |
8faf3b31 ZY |
1811 | temp = I915_READ(transconf_reg); |
1812 | /* BPC in transcoder is consistent with that in pipeconf */ | |
1813 | temp &= ~PIPE_BPC_MASK; | |
1814 | temp |= pipe_bpc; | |
1815 | I915_WRITE(transconf_reg, temp); | |
1816 | I915_READ(transconf_reg); | |
1b3c7a47 ZW |
1817 | udelay(100); |
1818 | ||
2c07245f ZW |
1819 | /* disable PCH DPLL */ |
1820 | temp = I915_READ(pch_dpll_reg); | |
1821 | if ((temp & DPLL_VCO_ENABLE) != 0) { | |
1822 | I915_WRITE(pch_dpll_reg, temp & ~DPLL_VCO_ENABLE); | |
1823 | I915_READ(pch_dpll_reg); | |
1824 | } | |
1825 | ||
1b3c7a47 | 1826 | if (HAS_eDP) { |
f2b115e6 | 1827 | ironlake_disable_pll_edp(crtc); |
2c07245f ZW |
1828 | } |
1829 | ||
1b3c7a47 ZW |
1830 | temp = I915_READ(fdi_rx_reg); |
1831 | temp &= ~FDI_SEL_PCDCLK; | |
1832 | I915_WRITE(fdi_rx_reg, temp); | |
1833 | I915_READ(fdi_rx_reg); | |
1834 | ||
1835 | temp = I915_READ(fdi_rx_reg); | |
1836 | temp &= ~FDI_RX_PLL_ENABLE; | |
1837 | I915_WRITE(fdi_rx_reg, temp); | |
1838 | I915_READ(fdi_rx_reg); | |
1839 | ||
249c0e64 ZW |
1840 | /* Disable CPU FDI TX PLL */ |
1841 | temp = I915_READ(fdi_tx_reg); | |
1842 | if ((temp & FDI_TX_PLL_ENABLE) != 0) { | |
1843 | I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_PLL_ENABLE); | |
1844 | I915_READ(fdi_tx_reg); | |
1845 | udelay(100); | |
1846 | } | |
1847 | ||
2c07245f | 1848 | /* Wait for the clocks to turn off. */ |
1b3c7a47 | 1849 | udelay(100); |
2c07245f ZW |
1850 | break; |
1851 | } | |
1852 | } | |
1853 | ||
02e792fb DV |
1854 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
1855 | { | |
1856 | struct intel_overlay *overlay; | |
03f77ea5 | 1857 | int ret; |
02e792fb DV |
1858 | |
1859 | if (!enable && intel_crtc->overlay) { | |
1860 | overlay = intel_crtc->overlay; | |
1861 | mutex_lock(&overlay->dev->struct_mutex); | |
03f77ea5 DV |
1862 | for (;;) { |
1863 | ret = intel_overlay_switch_off(overlay); | |
1864 | if (ret == 0) | |
1865 | break; | |
1866 | ||
1867 | ret = intel_overlay_recover_from_interrupt(overlay, 0); | |
1868 | if (ret != 0) { | |
1869 | /* overlay doesn't react anymore. Usually | |
1870 | * results in a black screen and an unkillable | |
1871 | * X server. */ | |
1872 | BUG(); | |
1873 | overlay->hw_wedged = HW_WEDGED; | |
1874 | break; | |
1875 | } | |
1876 | } | |
02e792fb DV |
1877 | mutex_unlock(&overlay->dev->struct_mutex); |
1878 | } | |
1879 | /* Let userspace switch the overlay on again. In most cases userspace | |
1880 | * has to recompute where to put it anyway. */ | |
1881 | ||
1882 | return; | |
1883 | } | |
1884 | ||
2c07245f | 1885 | static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) |
79e53945 JB |
1886 | { |
1887 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
1888 | struct drm_i915_private *dev_priv = dev->dev_private; |
1889 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1890 | int pipe = intel_crtc->pipe; | |
80824003 | 1891 | int plane = intel_crtc->plane; |
79e53945 | 1892 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; |
80824003 JB |
1893 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; |
1894 | int dspbase_reg = (plane == 0) ? DSPAADDR : DSPBADDR; | |
79e53945 JB |
1895 | int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; |
1896 | u32 temp; | |
79e53945 JB |
1897 | |
1898 | /* XXX: When our outputs are all unaware of DPMS modes other than off | |
1899 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
1900 | */ | |
1901 | switch (mode) { | |
1902 | case DRM_MODE_DPMS_ON: | |
1903 | case DRM_MODE_DPMS_STANDBY: | |
1904 | case DRM_MODE_DPMS_SUSPEND: | |
629598da JB |
1905 | intel_update_watermarks(dev); |
1906 | ||
79e53945 JB |
1907 | /* Enable the DPLL */ |
1908 | temp = I915_READ(dpll_reg); | |
1909 | if ((temp & DPLL_VCO_ENABLE) == 0) { | |
1910 | I915_WRITE(dpll_reg, temp); | |
1911 | I915_READ(dpll_reg); | |
1912 | /* Wait for the clocks to stabilize. */ | |
1913 | udelay(150); | |
1914 | I915_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE); | |
1915 | I915_READ(dpll_reg); | |
1916 | /* Wait for the clocks to stabilize. */ | |
1917 | udelay(150); | |
1918 | I915_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE); | |
1919 | I915_READ(dpll_reg); | |
1920 | /* Wait for the clocks to stabilize. */ | |
1921 | udelay(150); | |
1922 | } | |
1923 | ||
1924 | /* Enable the pipe */ | |
1925 | temp = I915_READ(pipeconf_reg); | |
1926 | if ((temp & PIPEACONF_ENABLE) == 0) | |
1927 | I915_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE); | |
1928 | ||
1929 | /* Enable the plane */ | |
1930 | temp = I915_READ(dspcntr_reg); | |
1931 | if ((temp & DISPLAY_PLANE_ENABLE) == 0) { | |
1932 | I915_WRITE(dspcntr_reg, temp | DISPLAY_PLANE_ENABLE); | |
1933 | /* Flush the plane changes */ | |
1934 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
1935 | } | |
1936 | ||
1937 | intel_crtc_load_lut(crtc); | |
1938 | ||
74dff282 JB |
1939 | if ((IS_I965G(dev) || plane == 0)) |
1940 | intel_update_fbc(crtc, &crtc->mode); | |
80824003 | 1941 | |
79e53945 | 1942 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
02e792fb | 1943 | intel_crtc_dpms_overlay(intel_crtc, true); |
79e53945 JB |
1944 | break; |
1945 | case DRM_MODE_DPMS_OFF: | |
7662c8bd | 1946 | intel_update_watermarks(dev); |
02e792fb | 1947 | |
79e53945 | 1948 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
02e792fb | 1949 | intel_crtc_dpms_overlay(intel_crtc, false); |
778c9026 | 1950 | drm_vblank_off(dev, pipe); |
79e53945 | 1951 | |
e70236a8 JB |
1952 | if (dev_priv->cfb_plane == plane && |
1953 | dev_priv->display.disable_fbc) | |
1954 | dev_priv->display.disable_fbc(dev); | |
80824003 | 1955 | |
79e53945 | 1956 | /* Disable the VGA plane that we never use */ |
24f119c7 | 1957 | i915_disable_vga(dev); |
79e53945 JB |
1958 | |
1959 | /* Disable display plane */ | |
1960 | temp = I915_READ(dspcntr_reg); | |
1961 | if ((temp & DISPLAY_PLANE_ENABLE) != 0) { | |
1962 | I915_WRITE(dspcntr_reg, temp & ~DISPLAY_PLANE_ENABLE); | |
1963 | /* Flush the plane changes */ | |
1964 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
1965 | I915_READ(dspbase_reg); | |
1966 | } | |
1967 | ||
1968 | if (!IS_I9XX(dev)) { | |
1969 | /* Wait for vblank for the disable to take effect */ | |
1970 | intel_wait_for_vblank(dev); | |
1971 | } | |
1972 | ||
1973 | /* Next, disable display pipes */ | |
1974 | temp = I915_READ(pipeconf_reg); | |
1975 | if ((temp & PIPEACONF_ENABLE) != 0) { | |
1976 | I915_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE); | |
1977 | I915_READ(pipeconf_reg); | |
1978 | } | |
1979 | ||
1980 | /* Wait for vblank for the disable to take effect. */ | |
1981 | intel_wait_for_vblank(dev); | |
1982 | ||
1983 | temp = I915_READ(dpll_reg); | |
1984 | if ((temp & DPLL_VCO_ENABLE) != 0) { | |
1985 | I915_WRITE(dpll_reg, temp & ~DPLL_VCO_ENABLE); | |
1986 | I915_READ(dpll_reg); | |
1987 | } | |
1988 | ||
1989 | /* Wait for the clocks to turn off. */ | |
1990 | udelay(150); | |
1991 | break; | |
1992 | } | |
2c07245f ZW |
1993 | } |
1994 | ||
1995 | /** | |
1996 | * Sets the power management mode of the pipe and plane. | |
1997 | * | |
1998 | * This code should probably grow support for turning the cursor off and back | |
1999 | * on appropriately at the same time as we're turning the pipe off/on. | |
2000 | */ | |
2001 | static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) | |
2002 | { | |
2003 | struct drm_device *dev = crtc->dev; | |
e70236a8 | 2004 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f ZW |
2005 | struct drm_i915_master_private *master_priv; |
2006 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2007 | int pipe = intel_crtc->pipe; | |
2008 | bool enabled; | |
2009 | ||
e70236a8 | 2010 | dev_priv->display.dpms(crtc, mode); |
79e53945 | 2011 | |
65655d4a DV |
2012 | intel_crtc->dpms_mode = mode; |
2013 | ||
79e53945 JB |
2014 | if (!dev->primary->master) |
2015 | return; | |
2016 | ||
2017 | master_priv = dev->primary->master->driver_priv; | |
2018 | if (!master_priv->sarea_priv) | |
2019 | return; | |
2020 | ||
2021 | enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF; | |
2022 | ||
2023 | switch (pipe) { | |
2024 | case 0: | |
2025 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
2026 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
2027 | break; | |
2028 | case 1: | |
2029 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
2030 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
2031 | break; | |
2032 | default: | |
2033 | DRM_ERROR("Can't update pipe %d in SAREA\n", pipe); | |
2034 | break; | |
2035 | } | |
79e53945 JB |
2036 | } |
2037 | ||
2038 | static void intel_crtc_prepare (struct drm_crtc *crtc) | |
2039 | { | |
2040 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
2041 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); | |
2042 | } | |
2043 | ||
2044 | static void intel_crtc_commit (struct drm_crtc *crtc) | |
2045 | { | |
2046 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
2047 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
2048 | } | |
2049 | ||
2050 | void intel_encoder_prepare (struct drm_encoder *encoder) | |
2051 | { | |
2052 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
2053 | /* lvds has its own version of prepare see intel_lvds_prepare */ | |
2054 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); | |
2055 | } | |
2056 | ||
2057 | void intel_encoder_commit (struct drm_encoder *encoder) | |
2058 | { | |
2059 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
2060 | /* lvds has its own version of commit see intel_lvds_commit */ | |
2061 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
2062 | } | |
2063 | ||
2064 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, | |
2065 | struct drm_display_mode *mode, | |
2066 | struct drm_display_mode *adjusted_mode) | |
2067 | { | |
2c07245f | 2068 | struct drm_device *dev = crtc->dev; |
f2b115e6 | 2069 | if (IS_IRONLAKE(dev)) { |
2c07245f ZW |
2070 | /* FDI link clock is fixed at 2.7G */ |
2071 | if (mode->clock * 3 > 27000 * 4) | |
2072 | return MODE_CLOCK_HIGH; | |
2073 | } | |
79e53945 JB |
2074 | return true; |
2075 | } | |
2076 | ||
e70236a8 JB |
2077 | static int i945_get_display_clock_speed(struct drm_device *dev) |
2078 | { | |
2079 | return 400000; | |
2080 | } | |
79e53945 | 2081 | |
e70236a8 | 2082 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 2083 | { |
e70236a8 JB |
2084 | return 333000; |
2085 | } | |
79e53945 | 2086 | |
e70236a8 JB |
2087 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
2088 | { | |
2089 | return 200000; | |
2090 | } | |
79e53945 | 2091 | |
e70236a8 JB |
2092 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
2093 | { | |
2094 | u16 gcfgc = 0; | |
79e53945 | 2095 | |
e70236a8 JB |
2096 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
2097 | ||
2098 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
2099 | return 133000; | |
2100 | else { | |
2101 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
2102 | case GC_DISPLAY_CLOCK_333_MHZ: | |
2103 | return 333000; | |
2104 | default: | |
2105 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
2106 | return 190000; | |
79e53945 | 2107 | } |
e70236a8 JB |
2108 | } |
2109 | } | |
2110 | ||
2111 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
2112 | { | |
2113 | return 266000; | |
2114 | } | |
2115 | ||
2116 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
2117 | { | |
2118 | u16 hpllcc = 0; | |
2119 | /* Assume that the hardware is in the high speed state. This | |
2120 | * should be the default. | |
2121 | */ | |
2122 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
2123 | case GC_CLOCK_133_200: | |
2124 | case GC_CLOCK_100_200: | |
2125 | return 200000; | |
2126 | case GC_CLOCK_166_250: | |
2127 | return 250000; | |
2128 | case GC_CLOCK_100_133: | |
79e53945 | 2129 | return 133000; |
e70236a8 | 2130 | } |
79e53945 | 2131 | |
e70236a8 JB |
2132 | /* Shouldn't happen */ |
2133 | return 0; | |
2134 | } | |
79e53945 | 2135 | |
e70236a8 JB |
2136 | static int i830_get_display_clock_speed(struct drm_device *dev) |
2137 | { | |
2138 | return 133000; | |
79e53945 JB |
2139 | } |
2140 | ||
79e53945 JB |
2141 | /** |
2142 | * Return the pipe currently connected to the panel fitter, | |
2143 | * or -1 if the panel fitter is not present or not in use | |
2144 | */ | |
02e792fb | 2145 | int intel_panel_fitter_pipe (struct drm_device *dev) |
79e53945 JB |
2146 | { |
2147 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2148 | u32 pfit_control; | |
2149 | ||
2150 | /* i830 doesn't have a panel fitter */ | |
2151 | if (IS_I830(dev)) | |
2152 | return -1; | |
2153 | ||
2154 | pfit_control = I915_READ(PFIT_CONTROL); | |
2155 | ||
2156 | /* See if the panel fitter is in use */ | |
2157 | if ((pfit_control & PFIT_ENABLE) == 0) | |
2158 | return -1; | |
2159 | ||
2160 | /* 965 can place panel fitter on either pipe */ | |
2161 | if (IS_I965G(dev)) | |
2162 | return (pfit_control >> 29) & 0x3; | |
2163 | ||
2164 | /* older chips can only use pipe 1 */ | |
2165 | return 1; | |
2166 | } | |
2167 | ||
2c07245f ZW |
2168 | struct fdi_m_n { |
2169 | u32 tu; | |
2170 | u32 gmch_m; | |
2171 | u32 gmch_n; | |
2172 | u32 link_m; | |
2173 | u32 link_n; | |
2174 | }; | |
2175 | ||
2176 | static void | |
2177 | fdi_reduce_ratio(u32 *num, u32 *den) | |
2178 | { | |
2179 | while (*num > 0xffffff || *den > 0xffffff) { | |
2180 | *num >>= 1; | |
2181 | *den >>= 1; | |
2182 | } | |
2183 | } | |
2184 | ||
2185 | #define DATA_N 0x800000 | |
2186 | #define LINK_N 0x80000 | |
2187 | ||
2188 | static void | |
f2b115e6 AJ |
2189 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
2190 | int link_clock, struct fdi_m_n *m_n) | |
2c07245f ZW |
2191 | { |
2192 | u64 temp; | |
2193 | ||
2194 | m_n->tu = 64; /* default size */ | |
2195 | ||
2196 | temp = (u64) DATA_N * pixel_clock; | |
2197 | temp = div_u64(temp, link_clock); | |
58a27471 ZW |
2198 | m_n->gmch_m = div_u64(temp * bits_per_pixel, nlanes); |
2199 | m_n->gmch_m >>= 3; /* convert to bytes_per_pixel */ | |
2c07245f ZW |
2200 | m_n->gmch_n = DATA_N; |
2201 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); | |
2202 | ||
2203 | temp = (u64) LINK_N * pixel_clock; | |
2204 | m_n->link_m = div_u64(temp, link_clock); | |
2205 | m_n->link_n = LINK_N; | |
2206 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); | |
2207 | } | |
2208 | ||
2209 | ||
7662c8bd SL |
2210 | struct intel_watermark_params { |
2211 | unsigned long fifo_size; | |
2212 | unsigned long max_wm; | |
2213 | unsigned long default_wm; | |
2214 | unsigned long guard_size; | |
2215 | unsigned long cacheline_size; | |
2216 | }; | |
2217 | ||
f2b115e6 AJ |
2218 | /* Pineview has different values for various configs */ |
2219 | static struct intel_watermark_params pineview_display_wm = { | |
2220 | PINEVIEW_DISPLAY_FIFO, | |
2221 | PINEVIEW_MAX_WM, | |
2222 | PINEVIEW_DFT_WM, | |
2223 | PINEVIEW_GUARD_WM, | |
2224 | PINEVIEW_FIFO_LINE_SIZE | |
7662c8bd | 2225 | }; |
f2b115e6 AJ |
2226 | static struct intel_watermark_params pineview_display_hplloff_wm = { |
2227 | PINEVIEW_DISPLAY_FIFO, | |
2228 | PINEVIEW_MAX_WM, | |
2229 | PINEVIEW_DFT_HPLLOFF_WM, | |
2230 | PINEVIEW_GUARD_WM, | |
2231 | PINEVIEW_FIFO_LINE_SIZE | |
7662c8bd | 2232 | }; |
f2b115e6 AJ |
2233 | static struct intel_watermark_params pineview_cursor_wm = { |
2234 | PINEVIEW_CURSOR_FIFO, | |
2235 | PINEVIEW_CURSOR_MAX_WM, | |
2236 | PINEVIEW_CURSOR_DFT_WM, | |
2237 | PINEVIEW_CURSOR_GUARD_WM, | |
2238 | PINEVIEW_FIFO_LINE_SIZE, | |
7662c8bd | 2239 | }; |
f2b115e6 AJ |
2240 | static struct intel_watermark_params pineview_cursor_hplloff_wm = { |
2241 | PINEVIEW_CURSOR_FIFO, | |
2242 | PINEVIEW_CURSOR_MAX_WM, | |
2243 | PINEVIEW_CURSOR_DFT_WM, | |
2244 | PINEVIEW_CURSOR_GUARD_WM, | |
2245 | PINEVIEW_FIFO_LINE_SIZE | |
7662c8bd | 2246 | }; |
0e442c60 JB |
2247 | static struct intel_watermark_params g4x_wm_info = { |
2248 | G4X_FIFO_SIZE, | |
2249 | G4X_MAX_WM, | |
2250 | G4X_MAX_WM, | |
2251 | 2, | |
2252 | G4X_FIFO_LINE_SIZE, | |
2253 | }; | |
7662c8bd | 2254 | static struct intel_watermark_params i945_wm_info = { |
dff33cfc | 2255 | I945_FIFO_SIZE, |
7662c8bd SL |
2256 | I915_MAX_WM, |
2257 | 1, | |
dff33cfc JB |
2258 | 2, |
2259 | I915_FIFO_LINE_SIZE | |
7662c8bd SL |
2260 | }; |
2261 | static struct intel_watermark_params i915_wm_info = { | |
dff33cfc | 2262 | I915_FIFO_SIZE, |
7662c8bd SL |
2263 | I915_MAX_WM, |
2264 | 1, | |
dff33cfc | 2265 | 2, |
7662c8bd SL |
2266 | I915_FIFO_LINE_SIZE |
2267 | }; | |
2268 | static struct intel_watermark_params i855_wm_info = { | |
2269 | I855GM_FIFO_SIZE, | |
2270 | I915_MAX_WM, | |
2271 | 1, | |
dff33cfc | 2272 | 2, |
7662c8bd SL |
2273 | I830_FIFO_LINE_SIZE |
2274 | }; | |
2275 | static struct intel_watermark_params i830_wm_info = { | |
2276 | I830_FIFO_SIZE, | |
2277 | I915_MAX_WM, | |
2278 | 1, | |
dff33cfc | 2279 | 2, |
7662c8bd SL |
2280 | I830_FIFO_LINE_SIZE |
2281 | }; | |
2282 | ||
dff33cfc JB |
2283 | /** |
2284 | * intel_calculate_wm - calculate watermark level | |
2285 | * @clock_in_khz: pixel clock | |
2286 | * @wm: chip FIFO params | |
2287 | * @pixel_size: display pixel size | |
2288 | * @latency_ns: memory latency for the platform | |
2289 | * | |
2290 | * Calculate the watermark level (the level at which the display plane will | |
2291 | * start fetching from memory again). Each chip has a different display | |
2292 | * FIFO size and allocation, so the caller needs to figure that out and pass | |
2293 | * in the correct intel_watermark_params structure. | |
2294 | * | |
2295 | * As the pixel clock runs, the FIFO will be drained at a rate that depends | |
2296 | * on the pixel size. When it reaches the watermark level, it'll start | |
2297 | * fetching FIFO line sized based chunks from memory until the FIFO fills | |
2298 | * past the watermark point. If the FIFO drains completely, a FIFO underrun | |
2299 | * will occur, and a display engine hang could result. | |
2300 | */ | |
7662c8bd SL |
2301 | static unsigned long intel_calculate_wm(unsigned long clock_in_khz, |
2302 | struct intel_watermark_params *wm, | |
2303 | int pixel_size, | |
2304 | unsigned long latency_ns) | |
2305 | { | |
390c4dd4 | 2306 | long entries_required, wm_size; |
dff33cfc | 2307 | |
d660467c JB |
2308 | /* |
2309 | * Note: we need to make sure we don't overflow for various clock & | |
2310 | * latency values. | |
2311 | * clocks go from a few thousand to several hundred thousand. | |
2312 | * latency is usually a few thousand | |
2313 | */ | |
2314 | entries_required = ((clock_in_khz / 1000) * pixel_size * latency_ns) / | |
2315 | 1000; | |
dff33cfc | 2316 | entries_required /= wm->cacheline_size; |
7662c8bd | 2317 | |
28c97730 | 2318 | DRM_DEBUG_KMS("FIFO entries required for mode: %d\n", entries_required); |
dff33cfc JB |
2319 | |
2320 | wm_size = wm->fifo_size - (entries_required + wm->guard_size); | |
2321 | ||
28c97730 | 2322 | DRM_DEBUG_KMS("FIFO watermark level: %d\n", wm_size); |
7662c8bd | 2323 | |
390c4dd4 JB |
2324 | /* Don't promote wm_size to unsigned... */ |
2325 | if (wm_size > (long)wm->max_wm) | |
7662c8bd | 2326 | wm_size = wm->max_wm; |
390c4dd4 | 2327 | if (wm_size <= 0) |
7662c8bd SL |
2328 | wm_size = wm->default_wm; |
2329 | return wm_size; | |
2330 | } | |
2331 | ||
2332 | struct cxsr_latency { | |
2333 | int is_desktop; | |
2334 | unsigned long fsb_freq; | |
2335 | unsigned long mem_freq; | |
2336 | unsigned long display_sr; | |
2337 | unsigned long display_hpll_disable; | |
2338 | unsigned long cursor_sr; | |
2339 | unsigned long cursor_hpll_disable; | |
2340 | }; | |
2341 | ||
2342 | static struct cxsr_latency cxsr_latency_table[] = { | |
2343 | {1, 800, 400, 3382, 33382, 3983, 33983}, /* DDR2-400 SC */ | |
2344 | {1, 800, 667, 3354, 33354, 3807, 33807}, /* DDR2-667 SC */ | |
2345 | {1, 800, 800, 3347, 33347, 3763, 33763}, /* DDR2-800 SC */ | |
2346 | ||
2347 | {1, 667, 400, 3400, 33400, 4021, 34021}, /* DDR2-400 SC */ | |
2348 | {1, 667, 667, 3372, 33372, 3845, 33845}, /* DDR2-667 SC */ | |
2349 | {1, 667, 800, 3386, 33386, 3822, 33822}, /* DDR2-800 SC */ | |
2350 | ||
2351 | {1, 400, 400, 3472, 33472, 4173, 34173}, /* DDR2-400 SC */ | |
2352 | {1, 400, 667, 3443, 33443, 3996, 33996}, /* DDR2-667 SC */ | |
2353 | {1, 400, 800, 3430, 33430, 3946, 33946}, /* DDR2-800 SC */ | |
2354 | ||
2355 | {0, 800, 400, 3438, 33438, 4065, 34065}, /* DDR2-400 SC */ | |
2356 | {0, 800, 667, 3410, 33410, 3889, 33889}, /* DDR2-667 SC */ | |
2357 | {0, 800, 800, 3403, 33403, 3845, 33845}, /* DDR2-800 SC */ | |
2358 | ||
2359 | {0, 667, 400, 3456, 33456, 4103, 34106}, /* DDR2-400 SC */ | |
2360 | {0, 667, 667, 3428, 33428, 3927, 33927}, /* DDR2-667 SC */ | |
2361 | {0, 667, 800, 3443, 33443, 3905, 33905}, /* DDR2-800 SC */ | |
2362 | ||
2363 | {0, 400, 400, 3528, 33528, 4255, 34255}, /* DDR2-400 SC */ | |
2364 | {0, 400, 667, 3500, 33500, 4079, 34079}, /* DDR2-667 SC */ | |
2365 | {0, 400, 800, 3487, 33487, 4029, 34029}, /* DDR2-800 SC */ | |
2366 | }; | |
2367 | ||
2368 | static struct cxsr_latency *intel_get_cxsr_latency(int is_desktop, int fsb, | |
2369 | int mem) | |
2370 | { | |
2371 | int i; | |
2372 | struct cxsr_latency *latency; | |
2373 | ||
2374 | if (fsb == 0 || mem == 0) | |
2375 | return NULL; | |
2376 | ||
2377 | for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) { | |
2378 | latency = &cxsr_latency_table[i]; | |
2379 | if (is_desktop == latency->is_desktop && | |
decbbcda JSR |
2380 | fsb == latency->fsb_freq && mem == latency->mem_freq) |
2381 | return latency; | |
7662c8bd | 2382 | } |
decbbcda | 2383 | |
28c97730 | 2384 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); |
decbbcda JSR |
2385 | |
2386 | return NULL; | |
7662c8bd SL |
2387 | } |
2388 | ||
f2b115e6 | 2389 | static void pineview_disable_cxsr(struct drm_device *dev) |
7662c8bd SL |
2390 | { |
2391 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2392 | u32 reg; | |
2393 | ||
2394 | /* deactivate cxsr */ | |
2395 | reg = I915_READ(DSPFW3); | |
f2b115e6 | 2396 | reg &= ~(PINEVIEW_SELF_REFRESH_EN); |
7662c8bd SL |
2397 | I915_WRITE(DSPFW3, reg); |
2398 | DRM_INFO("Big FIFO is disabled\n"); | |
2399 | } | |
2400 | ||
f2b115e6 AJ |
2401 | static void pineview_enable_cxsr(struct drm_device *dev, unsigned long clock, |
2402 | int pixel_size) | |
7662c8bd SL |
2403 | { |
2404 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2405 | u32 reg; | |
2406 | unsigned long wm; | |
2407 | struct cxsr_latency *latency; | |
2408 | ||
f2b115e6 | 2409 | latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->fsb_freq, |
7662c8bd SL |
2410 | dev_priv->mem_freq); |
2411 | if (!latency) { | |
28c97730 | 2412 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); |
f2b115e6 | 2413 | pineview_disable_cxsr(dev); |
7662c8bd SL |
2414 | return; |
2415 | } | |
2416 | ||
2417 | /* Display SR */ | |
f2b115e6 | 2418 | wm = intel_calculate_wm(clock, &pineview_display_wm, pixel_size, |
7662c8bd SL |
2419 | latency->display_sr); |
2420 | reg = I915_READ(DSPFW1); | |
2421 | reg &= 0x7fffff; | |
2422 | reg |= wm << 23; | |
2423 | I915_WRITE(DSPFW1, reg); | |
28c97730 | 2424 | DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg); |
7662c8bd SL |
2425 | |
2426 | /* cursor SR */ | |
f2b115e6 | 2427 | wm = intel_calculate_wm(clock, &pineview_cursor_wm, pixel_size, |
7662c8bd SL |
2428 | latency->cursor_sr); |
2429 | reg = I915_READ(DSPFW3); | |
2430 | reg &= ~(0x3f << 24); | |
2431 | reg |= (wm & 0x3f) << 24; | |
2432 | I915_WRITE(DSPFW3, reg); | |
2433 | ||
2434 | /* Display HPLL off SR */ | |
f2b115e6 | 2435 | wm = intel_calculate_wm(clock, &pineview_display_hplloff_wm, |
7662c8bd SL |
2436 | latency->display_hpll_disable, I915_FIFO_LINE_SIZE); |
2437 | reg = I915_READ(DSPFW3); | |
2438 | reg &= 0xfffffe00; | |
2439 | reg |= wm & 0x1ff; | |
2440 | I915_WRITE(DSPFW3, reg); | |
2441 | ||
2442 | /* cursor HPLL off SR */ | |
f2b115e6 | 2443 | wm = intel_calculate_wm(clock, &pineview_cursor_hplloff_wm, pixel_size, |
7662c8bd SL |
2444 | latency->cursor_hpll_disable); |
2445 | reg = I915_READ(DSPFW3); | |
2446 | reg &= ~(0x3f << 16); | |
2447 | reg |= (wm & 0x3f) << 16; | |
2448 | I915_WRITE(DSPFW3, reg); | |
28c97730 | 2449 | DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg); |
7662c8bd SL |
2450 | |
2451 | /* activate cxsr */ | |
2452 | reg = I915_READ(DSPFW3); | |
f2b115e6 | 2453 | reg |= PINEVIEW_SELF_REFRESH_EN; |
7662c8bd SL |
2454 | I915_WRITE(DSPFW3, reg); |
2455 | ||
2456 | DRM_INFO("Big FIFO is enabled\n"); | |
2457 | ||
2458 | return; | |
2459 | } | |
2460 | ||
bcc24fb4 JB |
2461 | /* |
2462 | * Latency for FIFO fetches is dependent on several factors: | |
2463 | * - memory configuration (speed, channels) | |
2464 | * - chipset | |
2465 | * - current MCH state | |
2466 | * It can be fairly high in some situations, so here we assume a fairly | |
2467 | * pessimal value. It's a tradeoff between extra memory fetches (if we | |
2468 | * set this value too high, the FIFO will fetch frequently to stay full) | |
2469 | * and power consumption (set it too low to save power and we might see | |
2470 | * FIFO underruns and display "flicker"). | |
2471 | * | |
2472 | * A value of 5us seems to be a good balance; safe for very low end | |
2473 | * platforms but not overly aggressive on lower latency configs. | |
2474 | */ | |
69e302a9 | 2475 | static const int latency_ns = 5000; |
7662c8bd | 2476 | |
e70236a8 | 2477 | static int i9xx_get_fifo_size(struct drm_device *dev, int plane) |
dff33cfc JB |
2478 | { |
2479 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2480 | uint32_t dsparb = I915_READ(DSPARB); | |
2481 | int size; | |
2482 | ||
e70236a8 | 2483 | if (plane == 0) |
f3601326 | 2484 | size = dsparb & 0x7f; |
e70236a8 JB |
2485 | else |
2486 | size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - | |
2487 | (dsparb & 0x7f); | |
dff33cfc | 2488 | |
28c97730 ZY |
2489 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
2490 | plane ? "B" : "A", size); | |
dff33cfc JB |
2491 | |
2492 | return size; | |
2493 | } | |
7662c8bd | 2494 | |
e70236a8 JB |
2495 | static int i85x_get_fifo_size(struct drm_device *dev, int plane) |
2496 | { | |
2497 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2498 | uint32_t dsparb = I915_READ(DSPARB); | |
2499 | int size; | |
2500 | ||
2501 | if (plane == 0) | |
2502 | size = dsparb & 0x1ff; | |
2503 | else | |
2504 | size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - | |
2505 | (dsparb & 0x1ff); | |
2506 | size >>= 1; /* Convert to cachelines */ | |
dff33cfc | 2507 | |
28c97730 ZY |
2508 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
2509 | plane ? "B" : "A", size); | |
dff33cfc JB |
2510 | |
2511 | return size; | |
2512 | } | |
7662c8bd | 2513 | |
e70236a8 JB |
2514 | static int i845_get_fifo_size(struct drm_device *dev, int plane) |
2515 | { | |
2516 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2517 | uint32_t dsparb = I915_READ(DSPARB); | |
2518 | int size; | |
2519 | ||
2520 | size = dsparb & 0x7f; | |
2521 | size >>= 2; /* Convert to cachelines */ | |
2522 | ||
28c97730 ZY |
2523 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
2524 | plane ? "B" : "A", | |
e70236a8 JB |
2525 | size); |
2526 | ||
2527 | return size; | |
2528 | } | |
2529 | ||
2530 | static int i830_get_fifo_size(struct drm_device *dev, int plane) | |
2531 | { | |
2532 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2533 | uint32_t dsparb = I915_READ(DSPARB); | |
2534 | int size; | |
2535 | ||
2536 | size = dsparb & 0x7f; | |
2537 | size >>= 1; /* Convert to cachelines */ | |
2538 | ||
28c97730 ZY |
2539 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
2540 | plane ? "B" : "A", size); | |
e70236a8 JB |
2541 | |
2542 | return size; | |
2543 | } | |
2544 | ||
0e442c60 JB |
2545 | static void g4x_update_wm(struct drm_device *dev, int planea_clock, |
2546 | int planeb_clock, int sr_hdisplay, int pixel_size) | |
652c393a JB |
2547 | { |
2548 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0e442c60 JB |
2549 | int total_size, cacheline_size; |
2550 | int planea_wm, planeb_wm, cursora_wm, cursorb_wm, cursor_sr; | |
2551 | struct intel_watermark_params planea_params, planeb_params; | |
2552 | unsigned long line_time_us; | |
2553 | int sr_clock, sr_entries = 0, entries_required; | |
652c393a | 2554 | |
0e442c60 JB |
2555 | /* Create copies of the base settings for each pipe */ |
2556 | planea_params = planeb_params = g4x_wm_info; | |
2557 | ||
2558 | /* Grab a couple of global values before we overwrite them */ | |
2559 | total_size = planea_params.fifo_size; | |
2560 | cacheline_size = planea_params.cacheline_size; | |
2561 | ||
2562 | /* | |
2563 | * Note: we need to make sure we don't overflow for various clock & | |
2564 | * latency values. | |
2565 | * clocks go from a few thousand to several hundred thousand. | |
2566 | * latency is usually a few thousand | |
2567 | */ | |
2568 | entries_required = ((planea_clock / 1000) * pixel_size * latency_ns) / | |
2569 | 1000; | |
2570 | entries_required /= G4X_FIFO_LINE_SIZE; | |
2571 | planea_wm = entries_required + planea_params.guard_size; | |
2572 | ||
2573 | entries_required = ((planeb_clock / 1000) * pixel_size * latency_ns) / | |
2574 | 1000; | |
2575 | entries_required /= G4X_FIFO_LINE_SIZE; | |
2576 | planeb_wm = entries_required + planeb_params.guard_size; | |
2577 | ||
2578 | cursora_wm = cursorb_wm = 16; | |
2579 | cursor_sr = 32; | |
2580 | ||
2581 | DRM_DEBUG("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); | |
2582 | ||
2583 | /* Calc sr entries for one plane configs */ | |
2584 | if (sr_hdisplay && (!planea_clock || !planeb_clock)) { | |
2585 | /* self-refresh has much higher latency */ | |
69e302a9 | 2586 | static const int sr_latency_ns = 12000; |
0e442c60 JB |
2587 | |
2588 | sr_clock = planea_clock ? planea_clock : planeb_clock; | |
2589 | line_time_us = ((sr_hdisplay * 1000) / sr_clock); | |
2590 | ||
2591 | /* Use ns/us then divide to preserve precision */ | |
2592 | sr_entries = (((sr_latency_ns / line_time_us) + 1) * | |
2593 | pixel_size * sr_hdisplay) / 1000; | |
2594 | sr_entries = roundup(sr_entries / cacheline_size, 1); | |
2595 | DRM_DEBUG("self-refresh entries: %d\n", sr_entries); | |
2596 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); | |
2597 | } | |
2598 | ||
2599 | DRM_DEBUG("Setting FIFO watermarks - A: %d, B: %d, SR %d\n", | |
2600 | planea_wm, planeb_wm, sr_entries); | |
2601 | ||
2602 | planea_wm &= 0x3f; | |
2603 | planeb_wm &= 0x3f; | |
2604 | ||
2605 | I915_WRITE(DSPFW1, (sr_entries << DSPFW_SR_SHIFT) | | |
2606 | (cursorb_wm << DSPFW_CURSORB_SHIFT) | | |
2607 | (planeb_wm << DSPFW_PLANEB_SHIFT) | planea_wm); | |
2608 | I915_WRITE(DSPFW2, (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) | | |
2609 | (cursora_wm << DSPFW_CURSORA_SHIFT)); | |
2610 | /* HPLL off in SR has some issues on G4x... disable it */ | |
2611 | I915_WRITE(DSPFW3, (I915_READ(DSPFW3) & ~DSPFW_HPLL_SR_EN) | | |
2612 | (cursor_sr << DSPFW_CURSOR_SR_SHIFT)); | |
652c393a JB |
2613 | } |
2614 | ||
1dc7546d JB |
2615 | static void i965_update_wm(struct drm_device *dev, int planea_clock, |
2616 | int planeb_clock, int sr_hdisplay, int pixel_size) | |
7662c8bd SL |
2617 | { |
2618 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1dc7546d JB |
2619 | unsigned long line_time_us; |
2620 | int sr_clock, sr_entries, srwm = 1; | |
2621 | ||
2622 | /* Calc sr entries for one plane configs */ | |
2623 | if (sr_hdisplay && (!planea_clock || !planeb_clock)) { | |
2624 | /* self-refresh has much higher latency */ | |
69e302a9 | 2625 | static const int sr_latency_ns = 12000; |
1dc7546d JB |
2626 | |
2627 | sr_clock = planea_clock ? planea_clock : planeb_clock; | |
2628 | line_time_us = ((sr_hdisplay * 1000) / sr_clock); | |
2629 | ||
2630 | /* Use ns/us then divide to preserve precision */ | |
2631 | sr_entries = (((sr_latency_ns / line_time_us) + 1) * | |
2632 | pixel_size * sr_hdisplay) / 1000; | |
2633 | sr_entries = roundup(sr_entries / I915_FIFO_LINE_SIZE, 1); | |
2634 | DRM_DEBUG("self-refresh entries: %d\n", sr_entries); | |
2635 | srwm = I945_FIFO_SIZE - sr_entries; | |
2636 | if (srwm < 0) | |
2637 | srwm = 1; | |
2638 | srwm &= 0x3f; | |
2639 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); | |
2640 | } | |
7662c8bd | 2641 | |
1dc7546d JB |
2642 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR %d\n", |
2643 | srwm); | |
7662c8bd SL |
2644 | |
2645 | /* 965 has limitations... */ | |
1dc7546d JB |
2646 | I915_WRITE(DSPFW1, (srwm << DSPFW_SR_SHIFT) | (8 << 16) | (8 << 8) | |
2647 | (8 << 0)); | |
7662c8bd SL |
2648 | I915_WRITE(DSPFW2, (8 << 8) | (8 << 0)); |
2649 | } | |
2650 | ||
2651 | static void i9xx_update_wm(struct drm_device *dev, int planea_clock, | |
2652 | int planeb_clock, int sr_hdisplay, int pixel_size) | |
2653 | { | |
2654 | struct drm_i915_private *dev_priv = dev->dev_private; | |
dff33cfc JB |
2655 | uint32_t fwater_lo; |
2656 | uint32_t fwater_hi; | |
2657 | int total_size, cacheline_size, cwm, srwm = 1; | |
2658 | int planea_wm, planeb_wm; | |
2659 | struct intel_watermark_params planea_params, planeb_params; | |
7662c8bd SL |
2660 | unsigned long line_time_us; |
2661 | int sr_clock, sr_entries = 0; | |
2662 | ||
dff33cfc | 2663 | /* Create copies of the base settings for each pipe */ |
7662c8bd | 2664 | if (IS_I965GM(dev) || IS_I945GM(dev)) |
dff33cfc | 2665 | planea_params = planeb_params = i945_wm_info; |
7662c8bd | 2666 | else if (IS_I9XX(dev)) |
dff33cfc | 2667 | planea_params = planeb_params = i915_wm_info; |
7662c8bd | 2668 | else |
dff33cfc | 2669 | planea_params = planeb_params = i855_wm_info; |
7662c8bd | 2670 | |
dff33cfc JB |
2671 | /* Grab a couple of global values before we overwrite them */ |
2672 | total_size = planea_params.fifo_size; | |
2673 | cacheline_size = planea_params.cacheline_size; | |
7662c8bd | 2674 | |
dff33cfc | 2675 | /* Update per-plane FIFO sizes */ |
e70236a8 JB |
2676 | planea_params.fifo_size = dev_priv->display.get_fifo_size(dev, 0); |
2677 | planeb_params.fifo_size = dev_priv->display.get_fifo_size(dev, 1); | |
7662c8bd | 2678 | |
dff33cfc JB |
2679 | planea_wm = intel_calculate_wm(planea_clock, &planea_params, |
2680 | pixel_size, latency_ns); | |
2681 | planeb_wm = intel_calculate_wm(planeb_clock, &planeb_params, | |
2682 | pixel_size, latency_ns); | |
28c97730 | 2683 | DRM_DEBUG_KMS("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); |
7662c8bd SL |
2684 | |
2685 | /* | |
2686 | * Overlay gets an aggressive default since video jitter is bad. | |
2687 | */ | |
2688 | cwm = 2; | |
2689 | ||
dff33cfc | 2690 | /* Calc sr entries for one plane configs */ |
652c393a JB |
2691 | if (HAS_FW_BLC(dev) && sr_hdisplay && |
2692 | (!planea_clock || !planeb_clock)) { | |
dff33cfc | 2693 | /* self-refresh has much higher latency */ |
69e302a9 | 2694 | static const int sr_latency_ns = 6000; |
dff33cfc | 2695 | |
7662c8bd | 2696 | sr_clock = planea_clock ? planea_clock : planeb_clock; |
dff33cfc JB |
2697 | line_time_us = ((sr_hdisplay * 1000) / sr_clock); |
2698 | ||
2699 | /* Use ns/us then divide to preserve precision */ | |
2700 | sr_entries = (((sr_latency_ns / line_time_us) + 1) * | |
2701 | pixel_size * sr_hdisplay) / 1000; | |
2702 | sr_entries = roundup(sr_entries / cacheline_size, 1); | |
28c97730 | 2703 | DRM_DEBUG_KMS("self-refresh entries: %d\n", sr_entries); |
dff33cfc JB |
2704 | srwm = total_size - sr_entries; |
2705 | if (srwm < 0) | |
2706 | srwm = 1; | |
652c393a | 2707 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN | (srwm & 0x3f)); |
7662c8bd SL |
2708 | } |
2709 | ||
28c97730 | 2710 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n", |
dff33cfc | 2711 | planea_wm, planeb_wm, cwm, srwm); |
7662c8bd | 2712 | |
dff33cfc JB |
2713 | fwater_lo = ((planeb_wm & 0x3f) << 16) | (planea_wm & 0x3f); |
2714 | fwater_hi = (cwm & 0x1f); | |
2715 | ||
2716 | /* Set request length to 8 cachelines per fetch */ | |
2717 | fwater_lo = fwater_lo | (1 << 24) | (1 << 8); | |
2718 | fwater_hi = fwater_hi | (1 << 8); | |
7662c8bd SL |
2719 | |
2720 | I915_WRITE(FW_BLC, fwater_lo); | |
2721 | I915_WRITE(FW_BLC2, fwater_hi); | |
7662c8bd SL |
2722 | } |
2723 | ||
e70236a8 JB |
2724 | static void i830_update_wm(struct drm_device *dev, int planea_clock, int unused, |
2725 | int unused2, int pixel_size) | |
7662c8bd SL |
2726 | { |
2727 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f3601326 | 2728 | uint32_t fwater_lo = I915_READ(FW_BLC) & ~0xfff; |
dff33cfc | 2729 | int planea_wm; |
7662c8bd | 2730 | |
e70236a8 | 2731 | i830_wm_info.fifo_size = dev_priv->display.get_fifo_size(dev, 0); |
7662c8bd | 2732 | |
dff33cfc JB |
2733 | planea_wm = intel_calculate_wm(planea_clock, &i830_wm_info, |
2734 | pixel_size, latency_ns); | |
f3601326 JB |
2735 | fwater_lo |= (3<<8) | planea_wm; |
2736 | ||
28c97730 | 2737 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d\n", planea_wm); |
7662c8bd SL |
2738 | |
2739 | I915_WRITE(FW_BLC, fwater_lo); | |
2740 | } | |
2741 | ||
2742 | /** | |
2743 | * intel_update_watermarks - update FIFO watermark values based on current modes | |
2744 | * | |
2745 | * Calculate watermark values for the various WM regs based on current mode | |
2746 | * and plane configuration. | |
2747 | * | |
2748 | * There are several cases to deal with here: | |
2749 | * - normal (i.e. non-self-refresh) | |
2750 | * - self-refresh (SR) mode | |
2751 | * - lines are large relative to FIFO size (buffer can hold up to 2) | |
2752 | * - lines are small relative to FIFO size (buffer can hold more than 2 | |
2753 | * lines), so need to account for TLB latency | |
2754 | * | |
2755 | * The normal calculation is: | |
2756 | * watermark = dotclock * bytes per pixel * latency | |
2757 | * where latency is platform & configuration dependent (we assume pessimal | |
2758 | * values here). | |
2759 | * | |
2760 | * The SR calculation is: | |
2761 | * watermark = (trunc(latency/line time)+1) * surface width * | |
2762 | * bytes per pixel | |
2763 | * where | |
2764 | * line time = htotal / dotclock | |
2765 | * and latency is assumed to be high, as above. | |
2766 | * | |
2767 | * The final value programmed to the register should always be rounded up, | |
2768 | * and include an extra 2 entries to account for clock crossings. | |
2769 | * | |
2770 | * We don't use the sprite, so we can ignore that. And on Crestline we have | |
2771 | * to set the non-SR watermarks to 8. | |
2772 | */ | |
2773 | static void intel_update_watermarks(struct drm_device *dev) | |
2774 | { | |
e70236a8 | 2775 | struct drm_i915_private *dev_priv = dev->dev_private; |
7662c8bd SL |
2776 | struct drm_crtc *crtc; |
2777 | struct intel_crtc *intel_crtc; | |
2778 | int sr_hdisplay = 0; | |
2779 | unsigned long planea_clock = 0, planeb_clock = 0, sr_clock = 0; | |
2780 | int enabled = 0, pixel_size = 0; | |
2781 | ||
c03342fa ZW |
2782 | if (!dev_priv->display.update_wm) |
2783 | return; | |
2784 | ||
7662c8bd SL |
2785 | /* Get the clock config from both planes */ |
2786 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
2787 | intel_crtc = to_intel_crtc(crtc); | |
2788 | if (crtc->enabled) { | |
2789 | enabled++; | |
2790 | if (intel_crtc->plane == 0) { | |
28c97730 | 2791 | DRM_DEBUG_KMS("plane A (pipe %d) clock: %d\n", |
7662c8bd SL |
2792 | intel_crtc->pipe, crtc->mode.clock); |
2793 | planea_clock = crtc->mode.clock; | |
2794 | } else { | |
28c97730 | 2795 | DRM_DEBUG_KMS("plane B (pipe %d) clock: %d\n", |
7662c8bd SL |
2796 | intel_crtc->pipe, crtc->mode.clock); |
2797 | planeb_clock = crtc->mode.clock; | |
2798 | } | |
2799 | sr_hdisplay = crtc->mode.hdisplay; | |
2800 | sr_clock = crtc->mode.clock; | |
2801 | if (crtc->fb) | |
2802 | pixel_size = crtc->fb->bits_per_pixel / 8; | |
2803 | else | |
2804 | pixel_size = 4; /* by default */ | |
2805 | } | |
2806 | } | |
2807 | ||
2808 | if (enabled <= 0) | |
2809 | return; | |
2810 | ||
dff33cfc | 2811 | /* Single plane configs can enable self refresh */ |
f2b115e6 AJ |
2812 | if (enabled == 1 && IS_PINEVIEW(dev)) |
2813 | pineview_enable_cxsr(dev, sr_clock, pixel_size); | |
2814 | else if (IS_PINEVIEW(dev)) | |
2815 | pineview_disable_cxsr(dev); | |
7662c8bd | 2816 | |
e70236a8 JB |
2817 | dev_priv->display.update_wm(dev, planea_clock, planeb_clock, |
2818 | sr_hdisplay, pixel_size); | |
7662c8bd SL |
2819 | } |
2820 | ||
5c3b82e2 CW |
2821 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
2822 | struct drm_display_mode *mode, | |
2823 | struct drm_display_mode *adjusted_mode, | |
2824 | int x, int y, | |
2825 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
2826 | { |
2827 | struct drm_device *dev = crtc->dev; | |
2828 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2829 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2830 | int pipe = intel_crtc->pipe; | |
80824003 | 2831 | int plane = intel_crtc->plane; |
79e53945 JB |
2832 | int fp_reg = (pipe == 0) ? FPA0 : FPB0; |
2833 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; | |
2834 | int dpll_md_reg = (intel_crtc->pipe == 0) ? DPLL_A_MD : DPLL_B_MD; | |
80824003 | 2835 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; |
79e53945 JB |
2836 | int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; |
2837 | int htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B; | |
2838 | int hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B; | |
2839 | int hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B; | |
2840 | int vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B; | |
2841 | int vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B; | |
2842 | int vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B; | |
80824003 JB |
2843 | int dspsize_reg = (plane == 0) ? DSPASIZE : DSPBSIZE; |
2844 | int dsppos_reg = (plane == 0) ? DSPAPOS : DSPBPOS; | |
79e53945 | 2845 | int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC; |
43565a06 | 2846 | int refclk, num_outputs = 0; |
652c393a JB |
2847 | intel_clock_t clock, reduced_clock; |
2848 | u32 dpll = 0, fp = 0, fp2 = 0, dspcntr, pipeconf; | |
2849 | bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false; | |
a4fc5ed6 | 2850 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
32f9d658 | 2851 | bool is_edp = false; |
79e53945 JB |
2852 | struct drm_mode_config *mode_config = &dev->mode_config; |
2853 | struct drm_connector *connector; | |
d4906093 | 2854 | const intel_limit_t *limit; |
5c3b82e2 | 2855 | int ret; |
2c07245f ZW |
2856 | struct fdi_m_n m_n = {0}; |
2857 | int data_m1_reg = (pipe == 0) ? PIPEA_DATA_M1 : PIPEB_DATA_M1; | |
2858 | int data_n1_reg = (pipe == 0) ? PIPEA_DATA_N1 : PIPEB_DATA_N1; | |
2859 | int link_m1_reg = (pipe == 0) ? PIPEA_LINK_M1 : PIPEB_LINK_M1; | |
2860 | int link_n1_reg = (pipe == 0) ? PIPEA_LINK_N1 : PIPEB_LINK_N1; | |
2861 | int pch_fp_reg = (pipe == 0) ? PCH_FPA0 : PCH_FPB0; | |
2862 | int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; | |
2863 | int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; | |
541998a1 | 2864 | int lvds_reg = LVDS; |
2c07245f ZW |
2865 | u32 temp; |
2866 | int sdvo_pixel_multiply; | |
5eb08b69 | 2867 | int target_clock; |
79e53945 JB |
2868 | |
2869 | drm_vblank_pre_modeset(dev, pipe); | |
2870 | ||
2871 | list_for_each_entry(connector, &mode_config->connector_list, head) { | |
2872 | struct intel_output *intel_output = to_intel_output(connector); | |
2873 | ||
2874 | if (!connector->encoder || connector->encoder->crtc != crtc) | |
2875 | continue; | |
2876 | ||
2877 | switch (intel_output->type) { | |
2878 | case INTEL_OUTPUT_LVDS: | |
2879 | is_lvds = true; | |
2880 | break; | |
2881 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 2882 | case INTEL_OUTPUT_HDMI: |
79e53945 | 2883 | is_sdvo = true; |
e2f0ba97 JB |
2884 | if (intel_output->needs_tv_clock) |
2885 | is_tv = true; | |
79e53945 JB |
2886 | break; |
2887 | case INTEL_OUTPUT_DVO: | |
2888 | is_dvo = true; | |
2889 | break; | |
2890 | case INTEL_OUTPUT_TVOUT: | |
2891 | is_tv = true; | |
2892 | break; | |
2893 | case INTEL_OUTPUT_ANALOG: | |
2894 | is_crt = true; | |
2895 | break; | |
a4fc5ed6 KP |
2896 | case INTEL_OUTPUT_DISPLAYPORT: |
2897 | is_dp = true; | |
2898 | break; | |
32f9d658 ZW |
2899 | case INTEL_OUTPUT_EDP: |
2900 | is_edp = true; | |
2901 | break; | |
79e53945 | 2902 | } |
43565a06 KH |
2903 | |
2904 | num_outputs++; | |
79e53945 JB |
2905 | } |
2906 | ||
43565a06 KH |
2907 | if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) { |
2908 | refclk = dev_priv->lvds_ssc_freq * 1000; | |
28c97730 ZY |
2909 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
2910 | refclk / 1000); | |
43565a06 | 2911 | } else if (IS_I9XX(dev)) { |
79e53945 | 2912 | refclk = 96000; |
f2b115e6 | 2913 | if (IS_IRONLAKE(dev)) |
2c07245f | 2914 | refclk = 120000; /* 120Mhz refclk */ |
79e53945 JB |
2915 | } else { |
2916 | refclk = 48000; | |
2917 | } | |
a4fc5ed6 | 2918 | |
79e53945 | 2919 | |
d4906093 ML |
2920 | /* |
2921 | * Returns a set of divisors for the desired target clock with the given | |
2922 | * refclk, or FALSE. The returned values represent the clock equation: | |
2923 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
2924 | */ | |
2925 | limit = intel_limit(crtc); | |
2926 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock); | |
79e53945 JB |
2927 | if (!ok) { |
2928 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
1f803ee5 | 2929 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 2930 | return -EINVAL; |
79e53945 JB |
2931 | } |
2932 | ||
18f9ed12 ZY |
2933 | if (is_lvds && limit->find_reduced_pll && |
2934 | dev_priv->lvds_downclock_avail) { | |
652c393a JB |
2935 | memcpy(&reduced_clock, &clock, sizeof(intel_clock_t)); |
2936 | has_reduced_clock = limit->find_reduced_pll(limit, crtc, | |
18f9ed12 | 2937 | dev_priv->lvds_downclock, |
652c393a JB |
2938 | refclk, |
2939 | &reduced_clock); | |
18f9ed12 ZY |
2940 | if (has_reduced_clock && (clock.p != reduced_clock.p)) { |
2941 | /* | |
2942 | * If the different P is found, it means that we can't | |
2943 | * switch the display clock by using the FP0/FP1. | |
2944 | * In such case we will disable the LVDS downclock | |
2945 | * feature. | |
2946 | */ | |
2947 | DRM_DEBUG_KMS("Different P is found for " | |
2948 | "LVDS clock/downclock\n"); | |
2949 | has_reduced_clock = 0; | |
2950 | } | |
652c393a | 2951 | } |
7026d4ac ZW |
2952 | /* SDVO TV has fixed PLL values depend on its clock range, |
2953 | this mirrors vbios setting. */ | |
2954 | if (is_sdvo && is_tv) { | |
2955 | if (adjusted_mode->clock >= 100000 | |
2956 | && adjusted_mode->clock < 140500) { | |
2957 | clock.p1 = 2; | |
2958 | clock.p2 = 10; | |
2959 | clock.n = 3; | |
2960 | clock.m1 = 16; | |
2961 | clock.m2 = 8; | |
2962 | } else if (adjusted_mode->clock >= 140500 | |
2963 | && adjusted_mode->clock <= 200000) { | |
2964 | clock.p1 = 1; | |
2965 | clock.p2 = 10; | |
2966 | clock.n = 6; | |
2967 | clock.m1 = 12; | |
2968 | clock.m2 = 8; | |
2969 | } | |
2970 | } | |
2971 | ||
2c07245f | 2972 | /* FDI link */ |
f2b115e6 | 2973 | if (IS_IRONLAKE(dev)) { |
58a27471 | 2974 | int lane, link_bw, bpp; |
32f9d658 ZW |
2975 | /* eDP doesn't require FDI link, so just set DP M/N |
2976 | according to current link config */ | |
2977 | if (is_edp) { | |
2978 | struct drm_connector *edp; | |
5eb08b69 | 2979 | target_clock = mode->clock; |
32f9d658 ZW |
2980 | edp = intel_pipe_get_output(crtc); |
2981 | intel_edp_link_config(to_intel_output(edp), | |
2982 | &lane, &link_bw); | |
2983 | } else { | |
2984 | /* DP over FDI requires target mode clock | |
2985 | instead of link clock */ | |
2986 | if (is_dp) | |
2987 | target_clock = mode->clock; | |
2988 | else | |
2989 | target_clock = adjusted_mode->clock; | |
2990 | lane = 4; | |
2991 | link_bw = 270000; | |
2992 | } | |
58a27471 ZW |
2993 | |
2994 | /* determine panel color depth */ | |
2995 | temp = I915_READ(pipeconf_reg); | |
2996 | ||
2997 | switch (temp & PIPE_BPC_MASK) { | |
2998 | case PIPE_8BPC: | |
2999 | bpp = 24; | |
3000 | break; | |
3001 | case PIPE_10BPC: | |
3002 | bpp = 30; | |
3003 | break; | |
3004 | case PIPE_6BPC: | |
3005 | bpp = 18; | |
3006 | break; | |
3007 | case PIPE_12BPC: | |
3008 | bpp = 36; | |
3009 | break; | |
3010 | default: | |
3011 | DRM_ERROR("unknown pipe bpc value\n"); | |
3012 | bpp = 24; | |
3013 | } | |
3014 | ||
f2b115e6 | 3015 | ironlake_compute_m_n(bpp, lane, target_clock, link_bw, &m_n); |
5eb08b69 | 3016 | } |
2c07245f | 3017 | |
c038e51e ZW |
3018 | /* Ironlake: try to setup display ref clock before DPLL |
3019 | * enabling. This is only under driver's control after | |
3020 | * PCH B stepping, previous chipset stepping should be | |
3021 | * ignoring this setting. | |
3022 | */ | |
f2b115e6 | 3023 | if (IS_IRONLAKE(dev)) { |
c038e51e ZW |
3024 | temp = I915_READ(PCH_DREF_CONTROL); |
3025 | /* Always enable nonspread source */ | |
3026 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
3027 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; | |
3028 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3029 | POSTING_READ(PCH_DREF_CONTROL); | |
3030 | ||
3031 | temp &= ~DREF_SSC_SOURCE_MASK; | |
3032 | temp |= DREF_SSC_SOURCE_ENABLE; | |
3033 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3034 | POSTING_READ(PCH_DREF_CONTROL); | |
3035 | ||
3036 | udelay(200); | |
3037 | ||
3038 | if (is_edp) { | |
3039 | if (dev_priv->lvds_use_ssc) { | |
3040 | temp |= DREF_SSC1_ENABLE; | |
3041 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3042 | POSTING_READ(PCH_DREF_CONTROL); | |
3043 | ||
3044 | udelay(200); | |
3045 | ||
3046 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
3047 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; | |
3048 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3049 | POSTING_READ(PCH_DREF_CONTROL); | |
3050 | } else { | |
3051 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
3052 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
3053 | POSTING_READ(PCH_DREF_CONTROL); | |
3054 | } | |
3055 | } | |
3056 | } | |
3057 | ||
f2b115e6 | 3058 | if (IS_PINEVIEW(dev)) { |
2177832f | 3059 | fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2; |
652c393a JB |
3060 | if (has_reduced_clock) |
3061 | fp2 = (1 << reduced_clock.n) << 16 | | |
3062 | reduced_clock.m1 << 8 | reduced_clock.m2; | |
3063 | } else { | |
2177832f | 3064 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
652c393a JB |
3065 | if (has_reduced_clock) |
3066 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
3067 | reduced_clock.m2; | |
3068 | } | |
79e53945 | 3069 | |
f2b115e6 | 3070 | if (!IS_IRONLAKE(dev)) |
2c07245f ZW |
3071 | dpll = DPLL_VGA_MODE_DIS; |
3072 | ||
79e53945 JB |
3073 | if (IS_I9XX(dev)) { |
3074 | if (is_lvds) | |
3075 | dpll |= DPLLB_MODE_LVDS; | |
3076 | else | |
3077 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
3078 | if (is_sdvo) { | |
3079 | dpll |= DPLL_DVO_HIGH_SPEED; | |
2c07245f | 3080 | sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; |
942642a4 | 3081 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
79e53945 | 3082 | dpll |= (sdvo_pixel_multiply - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; |
f2b115e6 | 3083 | else if (IS_IRONLAKE(dev)) |
2c07245f | 3084 | dpll |= (sdvo_pixel_multiply - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; |
79e53945 | 3085 | } |
a4fc5ed6 KP |
3086 | if (is_dp) |
3087 | dpll |= DPLL_DVO_HIGH_SPEED; | |
79e53945 JB |
3088 | |
3089 | /* compute bitmask from p1 value */ | |
f2b115e6 AJ |
3090 | if (IS_PINEVIEW(dev)) |
3091 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
2c07245f | 3092 | else { |
2177832f | 3093 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
2c07245f | 3094 | /* also FPA1 */ |
f2b115e6 | 3095 | if (IS_IRONLAKE(dev)) |
2c07245f | 3096 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
652c393a JB |
3097 | if (IS_G4X(dev) && has_reduced_clock) |
3098 | dpll |= (1 << (reduced_clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
2c07245f | 3099 | } |
79e53945 JB |
3100 | switch (clock.p2) { |
3101 | case 5: | |
3102 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
3103 | break; | |
3104 | case 7: | |
3105 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
3106 | break; | |
3107 | case 10: | |
3108 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
3109 | break; | |
3110 | case 14: | |
3111 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
3112 | break; | |
3113 | } | |
f2b115e6 | 3114 | if (IS_I965G(dev) && !IS_IRONLAKE(dev)) |
79e53945 JB |
3115 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); |
3116 | } else { | |
3117 | if (is_lvds) { | |
3118 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
3119 | } else { | |
3120 | if (clock.p1 == 2) | |
3121 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
3122 | else | |
3123 | dpll |= (clock.p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
3124 | if (clock.p2 == 4) | |
3125 | dpll |= PLL_P2_DIVIDE_BY_4; | |
3126 | } | |
3127 | } | |
3128 | ||
43565a06 KH |
3129 | if (is_sdvo && is_tv) |
3130 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
3131 | else if (is_tv) | |
79e53945 | 3132 | /* XXX: just matching BIOS for now */ |
43565a06 | 3133 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 3134 | dpll |= 3; |
43565a06 KH |
3135 | else if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) |
3136 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
79e53945 JB |
3137 | else |
3138 | dpll |= PLL_REF_INPUT_DREFCLK; | |
3139 | ||
3140 | /* setup pipeconf */ | |
3141 | pipeconf = I915_READ(pipeconf_reg); | |
3142 | ||
3143 | /* Set up the display plane register */ | |
3144 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
3145 | ||
f2b115e6 | 3146 | /* Ironlake's plane is forced to pipe, bit 24 is to |
2c07245f | 3147 | enable color space conversion */ |
f2b115e6 | 3148 | if (!IS_IRONLAKE(dev)) { |
2c07245f | 3149 | if (pipe == 0) |
80824003 | 3150 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; |
2c07245f ZW |
3151 | else |
3152 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
3153 | } | |
79e53945 JB |
3154 | |
3155 | if (pipe == 0 && !IS_I965G(dev)) { | |
3156 | /* Enable pixel doubling when the dot clock is > 90% of the (display) | |
3157 | * core speed. | |
3158 | * | |
3159 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
3160 | * pipe == 0 check? | |
3161 | */ | |
e70236a8 JB |
3162 | if (mode->clock > |
3163 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
79e53945 JB |
3164 | pipeconf |= PIPEACONF_DOUBLE_WIDE; |
3165 | else | |
3166 | pipeconf &= ~PIPEACONF_DOUBLE_WIDE; | |
3167 | } | |
3168 | ||
3169 | dspcntr |= DISPLAY_PLANE_ENABLE; | |
3170 | pipeconf |= PIPEACONF_ENABLE; | |
3171 | dpll |= DPLL_VCO_ENABLE; | |
3172 | ||
3173 | ||
3174 | /* Disable the panel fitter if it was on our pipe */ | |
f2b115e6 | 3175 | if (!IS_IRONLAKE(dev) && intel_panel_fitter_pipe(dev) == pipe) |
79e53945 JB |
3176 | I915_WRITE(PFIT_CONTROL, 0); |
3177 | ||
28c97730 | 3178 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
79e53945 JB |
3179 | drm_mode_debug_printmodeline(mode); |
3180 | ||
f2b115e6 AJ |
3181 | /* assign to Ironlake registers */ |
3182 | if (IS_IRONLAKE(dev)) { | |
2c07245f ZW |
3183 | fp_reg = pch_fp_reg; |
3184 | dpll_reg = pch_dpll_reg; | |
3185 | } | |
79e53945 | 3186 | |
32f9d658 | 3187 | if (is_edp) { |
f2b115e6 | 3188 | ironlake_disable_pll_edp(crtc); |
32f9d658 | 3189 | } else if ((dpll & DPLL_VCO_ENABLE)) { |
79e53945 JB |
3190 | I915_WRITE(fp_reg, fp); |
3191 | I915_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE); | |
3192 | I915_READ(dpll_reg); | |
3193 | udelay(150); | |
3194 | } | |
3195 | ||
3196 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
3197 | * This is an exception to the general rule that mode_set doesn't turn | |
3198 | * things on. | |
3199 | */ | |
3200 | if (is_lvds) { | |
541998a1 | 3201 | u32 lvds; |
79e53945 | 3202 | |
f2b115e6 | 3203 | if (IS_IRONLAKE(dev)) |
541998a1 ZW |
3204 | lvds_reg = PCH_LVDS; |
3205 | ||
3206 | lvds = I915_READ(lvds_reg); | |
79e53945 | 3207 | lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP | LVDS_PIPEB_SELECT; |
a3e17eb8 ZY |
3208 | /* set the corresponsding LVDS_BORDER bit */ |
3209 | lvds |= dev_priv->lvds_border_bits; | |
79e53945 JB |
3210 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
3211 | * set the DPLLs for dual-channel mode or not. | |
3212 | */ | |
3213 | if (clock.p2 == 7) | |
3214 | lvds |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
3215 | else | |
3216 | lvds &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); | |
3217 | ||
3218 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
3219 | * appropriately here, but we need to look more thoroughly into how | |
3220 | * panels behave in the two modes. | |
3221 | */ | |
898822ce ZY |
3222 | /* set the dithering flag */ |
3223 | if (IS_I965G(dev)) { | |
3224 | if (dev_priv->lvds_dither) { | |
3225 | if (IS_IRONLAKE(dev)) | |
3226 | pipeconf |= PIPE_ENABLE_DITHER; | |
3227 | else | |
3228 | lvds |= LVDS_ENABLE_DITHER; | |
3229 | } else { | |
3230 | if (IS_IRONLAKE(dev)) | |
3231 | pipeconf &= ~PIPE_ENABLE_DITHER; | |
3232 | else | |
3233 | lvds &= ~LVDS_ENABLE_DITHER; | |
3234 | } | |
3235 | } | |
541998a1 ZW |
3236 | I915_WRITE(lvds_reg, lvds); |
3237 | I915_READ(lvds_reg); | |
79e53945 | 3238 | } |
a4fc5ed6 KP |
3239 | if (is_dp) |
3240 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
79e53945 | 3241 | |
32f9d658 ZW |
3242 | if (!is_edp) { |
3243 | I915_WRITE(fp_reg, fp); | |
79e53945 | 3244 | I915_WRITE(dpll_reg, dpll); |
32f9d658 ZW |
3245 | I915_READ(dpll_reg); |
3246 | /* Wait for the clocks to stabilize. */ | |
3247 | udelay(150); | |
3248 | ||
f2b115e6 | 3249 | if (IS_I965G(dev) && !IS_IRONLAKE(dev)) { |
bb66c512 ZY |
3250 | if (is_sdvo) { |
3251 | sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; | |
3252 | I915_WRITE(dpll_md_reg, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) | | |
32f9d658 | 3253 | ((sdvo_pixel_multiply - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT)); |
bb66c512 ZY |
3254 | } else |
3255 | I915_WRITE(dpll_md_reg, 0); | |
32f9d658 ZW |
3256 | } else { |
3257 | /* write it again -- the BIOS does, after all */ | |
3258 | I915_WRITE(dpll_reg, dpll); | |
3259 | } | |
3260 | I915_READ(dpll_reg); | |
3261 | /* Wait for the clocks to stabilize. */ | |
3262 | udelay(150); | |
79e53945 | 3263 | } |
79e53945 | 3264 | |
652c393a JB |
3265 | if (is_lvds && has_reduced_clock && i915_powersave) { |
3266 | I915_WRITE(fp_reg + 4, fp2); | |
3267 | intel_crtc->lowfreq_avail = true; | |
3268 | if (HAS_PIPE_CXSR(dev)) { | |
28c97730 | 3269 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
652c393a JB |
3270 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
3271 | } | |
3272 | } else { | |
3273 | I915_WRITE(fp_reg + 4, fp); | |
3274 | intel_crtc->lowfreq_avail = false; | |
3275 | if (HAS_PIPE_CXSR(dev)) { | |
28c97730 | 3276 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
652c393a JB |
3277 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
3278 | } | |
3279 | } | |
3280 | ||
79e53945 JB |
3281 | I915_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) | |
3282 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
3283 | I915_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) | | |
3284 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
3285 | I915_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start - 1) | | |
3286 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
3287 | I915_WRITE(vtot_reg, (adjusted_mode->crtc_vdisplay - 1) | | |
3288 | ((adjusted_mode->crtc_vtotal - 1) << 16)); | |
3289 | I915_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start - 1) | | |
3290 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); | |
3291 | I915_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start - 1) | | |
3292 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
3293 | /* pipesrc and dspsize control the size that is scaled from, which should | |
3294 | * always be the user's requested size. | |
3295 | */ | |
f2b115e6 | 3296 | if (!IS_IRONLAKE(dev)) { |
2c07245f ZW |
3297 | I915_WRITE(dspsize_reg, ((mode->vdisplay - 1) << 16) | |
3298 | (mode->hdisplay - 1)); | |
3299 | I915_WRITE(dsppos_reg, 0); | |
3300 | } | |
79e53945 | 3301 | I915_WRITE(pipesrc_reg, ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); |
2c07245f | 3302 | |
f2b115e6 | 3303 | if (IS_IRONLAKE(dev)) { |
2c07245f ZW |
3304 | I915_WRITE(data_m1_reg, TU_SIZE(m_n.tu) | m_n.gmch_m); |
3305 | I915_WRITE(data_n1_reg, TU_SIZE(m_n.tu) | m_n.gmch_n); | |
3306 | I915_WRITE(link_m1_reg, m_n.link_m); | |
3307 | I915_WRITE(link_n1_reg, m_n.link_n); | |
3308 | ||
32f9d658 | 3309 | if (is_edp) { |
f2b115e6 | 3310 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
32f9d658 ZW |
3311 | } else { |
3312 | /* enable FDI RX PLL too */ | |
3313 | temp = I915_READ(fdi_rx_reg); | |
3314 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE); | |
3315 | udelay(200); | |
3316 | } | |
2c07245f ZW |
3317 | } |
3318 | ||
79e53945 JB |
3319 | I915_WRITE(pipeconf_reg, pipeconf); |
3320 | I915_READ(pipeconf_reg); | |
3321 | ||
3322 | intel_wait_for_vblank(dev); | |
3323 | ||
f2b115e6 | 3324 | if (IS_IRONLAKE(dev)) { |
553bd149 ZW |
3325 | /* enable address swizzle for tiling buffer */ |
3326 | temp = I915_READ(DISP_ARB_CTL); | |
3327 | I915_WRITE(DISP_ARB_CTL, temp | DISP_TILE_SURFACE_SWIZZLING); | |
3328 | } | |
3329 | ||
79e53945 JB |
3330 | I915_WRITE(dspcntr_reg, dspcntr); |
3331 | ||
3332 | /* Flush the plane changes */ | |
5c3b82e2 | 3333 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
7662c8bd | 3334 | |
74dff282 JB |
3335 | if ((IS_I965G(dev) || plane == 0)) |
3336 | intel_update_fbc(crtc, &crtc->mode); | |
e70236a8 | 3337 | |
7662c8bd SL |
3338 | intel_update_watermarks(dev); |
3339 | ||
79e53945 | 3340 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 3341 | |
1f803ee5 | 3342 | return ret; |
79e53945 JB |
3343 | } |
3344 | ||
3345 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ | |
3346 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
3347 | { | |
3348 | struct drm_device *dev = crtc->dev; | |
3349 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3350 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3351 | int palreg = (intel_crtc->pipe == 0) ? PALETTE_A : PALETTE_B; | |
3352 | int i; | |
3353 | ||
3354 | /* The clocks have to be on to load the palette. */ | |
3355 | if (!crtc->enabled) | |
3356 | return; | |
3357 | ||
f2b115e6 AJ |
3358 | /* use legacy palette for Ironlake */ |
3359 | if (IS_IRONLAKE(dev)) | |
2c07245f ZW |
3360 | palreg = (intel_crtc->pipe == 0) ? LGC_PALETTE_A : |
3361 | LGC_PALETTE_B; | |
3362 | ||
79e53945 JB |
3363 | for (i = 0; i < 256; i++) { |
3364 | I915_WRITE(palreg + 4 * i, | |
3365 | (intel_crtc->lut_r[i] << 16) | | |
3366 | (intel_crtc->lut_g[i] << 8) | | |
3367 | intel_crtc->lut_b[i]); | |
3368 | } | |
3369 | } | |
3370 | ||
3371 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, | |
3372 | struct drm_file *file_priv, | |
3373 | uint32_t handle, | |
3374 | uint32_t width, uint32_t height) | |
3375 | { | |
3376 | struct drm_device *dev = crtc->dev; | |
3377 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3378 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3379 | struct drm_gem_object *bo; | |
3380 | struct drm_i915_gem_object *obj_priv; | |
3381 | int pipe = intel_crtc->pipe; | |
3382 | uint32_t control = (pipe == 0) ? CURACNTR : CURBCNTR; | |
3383 | uint32_t base = (pipe == 0) ? CURABASE : CURBBASE; | |
14b60391 | 3384 | uint32_t temp = I915_READ(control); |
79e53945 | 3385 | size_t addr; |
3f8bc370 | 3386 | int ret; |
79e53945 | 3387 | |
28c97730 | 3388 | DRM_DEBUG_KMS("\n"); |
79e53945 JB |
3389 | |
3390 | /* if we want to turn off the cursor ignore width and height */ | |
3391 | if (!handle) { | |
28c97730 | 3392 | DRM_DEBUG_KMS("cursor off\n"); |
14b60391 JB |
3393 | if (IS_MOBILE(dev) || IS_I9XX(dev)) { |
3394 | temp &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
3395 | temp |= CURSOR_MODE_DISABLE; | |
3396 | } else { | |
3397 | temp &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
3398 | } | |
3f8bc370 KH |
3399 | addr = 0; |
3400 | bo = NULL; | |
5004417d | 3401 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 3402 | goto finish; |
79e53945 JB |
3403 | } |
3404 | ||
3405 | /* Currently we only support 64x64 cursors */ | |
3406 | if (width != 64 || height != 64) { | |
3407 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
3408 | return -EINVAL; | |
3409 | } | |
3410 | ||
3411 | bo = drm_gem_object_lookup(dev, file_priv, handle); | |
3412 | if (!bo) | |
3413 | return -ENOENT; | |
3414 | ||
3415 | obj_priv = bo->driver_private; | |
3416 | ||
3417 | if (bo->size < width * height * 4) { | |
3418 | DRM_ERROR("buffer is to small\n"); | |
34b8686e DA |
3419 | ret = -ENOMEM; |
3420 | goto fail; | |
79e53945 JB |
3421 | } |
3422 | ||
71acb5eb | 3423 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 3424 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 3425 | if (!dev_priv->info->cursor_needs_physical) { |
71acb5eb DA |
3426 | ret = i915_gem_object_pin(bo, PAGE_SIZE); |
3427 | if (ret) { | |
3428 | DRM_ERROR("failed to pin cursor bo\n"); | |
7f9872e0 | 3429 | goto fail_locked; |
71acb5eb | 3430 | } |
79e53945 | 3431 | addr = obj_priv->gtt_offset; |
71acb5eb DA |
3432 | } else { |
3433 | ret = i915_gem_attach_phys_object(dev, bo, (pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1); | |
3434 | if (ret) { | |
3435 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 3436 | goto fail_locked; |
71acb5eb DA |
3437 | } |
3438 | addr = obj_priv->phys_obj->handle->busaddr; | |
3f8bc370 KH |
3439 | } |
3440 | ||
14b60391 JB |
3441 | if (!IS_I9XX(dev)) |
3442 | I915_WRITE(CURSIZE, (height << 12) | width); | |
3443 | ||
3444 | /* Hooray for CUR*CNTR differences */ | |
3445 | if (IS_MOBILE(dev) || IS_I9XX(dev)) { | |
3446 | temp &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
3447 | temp |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
3448 | temp |= (pipe << 28); /* Connect to correct pipe */ | |
3449 | } else { | |
3450 | temp &= ~(CURSOR_FORMAT_MASK); | |
3451 | temp |= CURSOR_ENABLE; | |
3452 | temp |= CURSOR_FORMAT_ARGB | CURSOR_GAMMA_ENABLE; | |
3453 | } | |
79e53945 | 3454 | |
3f8bc370 | 3455 | finish: |
79e53945 JB |
3456 | I915_WRITE(control, temp); |
3457 | I915_WRITE(base, addr); | |
3458 | ||
3f8bc370 | 3459 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 3460 | if (dev_priv->info->cursor_needs_physical) { |
71acb5eb DA |
3461 | if (intel_crtc->cursor_bo != bo) |
3462 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); | |
3463 | } else | |
3464 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
3f8bc370 KH |
3465 | drm_gem_object_unreference(intel_crtc->cursor_bo); |
3466 | } | |
80824003 | 3467 | |
7f9872e0 | 3468 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
3469 | |
3470 | intel_crtc->cursor_addr = addr; | |
3471 | intel_crtc->cursor_bo = bo; | |
3472 | ||
79e53945 | 3473 | return 0; |
34b8686e DA |
3474 | fail: |
3475 | mutex_lock(&dev->struct_mutex); | |
7f9872e0 | 3476 | fail_locked: |
34b8686e DA |
3477 | drm_gem_object_unreference(bo); |
3478 | mutex_unlock(&dev->struct_mutex); | |
3479 | return ret; | |
79e53945 JB |
3480 | } |
3481 | ||
3482 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
3483 | { | |
3484 | struct drm_device *dev = crtc->dev; | |
3485 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3486 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
652c393a | 3487 | struct intel_framebuffer *intel_fb; |
79e53945 JB |
3488 | int pipe = intel_crtc->pipe; |
3489 | uint32_t temp = 0; | |
3490 | uint32_t adder; | |
3491 | ||
652c393a JB |
3492 | if (crtc->fb) { |
3493 | intel_fb = to_intel_framebuffer(crtc->fb); | |
3494 | intel_mark_busy(dev, intel_fb->obj); | |
3495 | } | |
3496 | ||
79e53945 | 3497 | if (x < 0) { |
2245fda8 | 3498 | temp |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; |
79e53945 JB |
3499 | x = -x; |
3500 | } | |
3501 | if (y < 0) { | |
2245fda8 | 3502 | temp |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; |
79e53945 JB |
3503 | y = -y; |
3504 | } | |
3505 | ||
2245fda8 KP |
3506 | temp |= x << CURSOR_X_SHIFT; |
3507 | temp |= y << CURSOR_Y_SHIFT; | |
79e53945 JB |
3508 | |
3509 | adder = intel_crtc->cursor_addr; | |
3510 | I915_WRITE((pipe == 0) ? CURAPOS : CURBPOS, temp); | |
3511 | I915_WRITE((pipe == 0) ? CURABASE : CURBBASE, adder); | |
3512 | ||
3513 | return 0; | |
3514 | } | |
3515 | ||
3516 | /** Sets the color ramps on behalf of RandR */ | |
3517 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
3518 | u16 blue, int regno) | |
3519 | { | |
3520 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3521 | ||
3522 | intel_crtc->lut_r[regno] = red >> 8; | |
3523 | intel_crtc->lut_g[regno] = green >> 8; | |
3524 | intel_crtc->lut_b[regno] = blue >> 8; | |
3525 | } | |
3526 | ||
b8c00ac5 DA |
3527 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
3528 | u16 *blue, int regno) | |
3529 | { | |
3530 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3531 | ||
3532 | *red = intel_crtc->lut_r[regno] << 8; | |
3533 | *green = intel_crtc->lut_g[regno] << 8; | |
3534 | *blue = intel_crtc->lut_b[regno] << 8; | |
3535 | } | |
3536 | ||
79e53945 JB |
3537 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
3538 | u16 *blue, uint32_t size) | |
3539 | { | |
3540 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3541 | int i; | |
3542 | ||
3543 | if (size != 256) | |
3544 | return; | |
3545 | ||
3546 | for (i = 0; i < 256; i++) { | |
3547 | intel_crtc->lut_r[i] = red[i] >> 8; | |
3548 | intel_crtc->lut_g[i] = green[i] >> 8; | |
3549 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
3550 | } | |
3551 | ||
3552 | intel_crtc_load_lut(crtc); | |
3553 | } | |
3554 | ||
3555 | /** | |
3556 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
3557 | * detection. | |
3558 | * | |
3559 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
3560 | * its requirements. The pipe will be connected to no other outputs. | |
3561 | * | |
3562 | * Currently this code will only succeed if there is a pipe with no outputs | |
3563 | * configured for it. In the future, it could choose to temporarily disable | |
3564 | * some outputs to free up a pipe for its use. | |
3565 | * | |
3566 | * \return crtc, or NULL if no pipes are available. | |
3567 | */ | |
3568 | ||
3569 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
3570 | static struct drm_display_mode load_detect_mode = { | |
3571 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
3572 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
3573 | }; | |
3574 | ||
3575 | struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output, | |
3576 | struct drm_display_mode *mode, | |
3577 | int *dpms_mode) | |
3578 | { | |
3579 | struct intel_crtc *intel_crtc; | |
3580 | struct drm_crtc *possible_crtc; | |
3581 | struct drm_crtc *supported_crtc =NULL; | |
3582 | struct drm_encoder *encoder = &intel_output->enc; | |
3583 | struct drm_crtc *crtc = NULL; | |
3584 | struct drm_device *dev = encoder->dev; | |
3585 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
3586 | struct drm_crtc_helper_funcs *crtc_funcs; | |
3587 | int i = -1; | |
3588 | ||
3589 | /* | |
3590 | * Algorithm gets a little messy: | |
3591 | * - if the connector already has an assigned crtc, use it (but make | |
3592 | * sure it's on first) | |
3593 | * - try to find the first unused crtc that can drive this connector, | |
3594 | * and use that if we find one | |
3595 | * - if there are no unused crtcs available, try to use the first | |
3596 | * one we found that supports the connector | |
3597 | */ | |
3598 | ||
3599 | /* See if we already have a CRTC for this connector */ | |
3600 | if (encoder->crtc) { | |
3601 | crtc = encoder->crtc; | |
3602 | /* Make sure the crtc and connector are running */ | |
3603 | intel_crtc = to_intel_crtc(crtc); | |
3604 | *dpms_mode = intel_crtc->dpms_mode; | |
3605 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { | |
3606 | crtc_funcs = crtc->helper_private; | |
3607 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
3608 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
3609 | } | |
3610 | return crtc; | |
3611 | } | |
3612 | ||
3613 | /* Find an unused one (if possible) */ | |
3614 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
3615 | i++; | |
3616 | if (!(encoder->possible_crtcs & (1 << i))) | |
3617 | continue; | |
3618 | if (!possible_crtc->enabled) { | |
3619 | crtc = possible_crtc; | |
3620 | break; | |
3621 | } | |
3622 | if (!supported_crtc) | |
3623 | supported_crtc = possible_crtc; | |
3624 | } | |
3625 | ||
3626 | /* | |
3627 | * If we didn't find an unused CRTC, don't use any. | |
3628 | */ | |
3629 | if (!crtc) { | |
3630 | return NULL; | |
3631 | } | |
3632 | ||
3633 | encoder->crtc = crtc; | |
03d60699 | 3634 | intel_output->base.encoder = encoder; |
79e53945 JB |
3635 | intel_output->load_detect_temp = true; |
3636 | ||
3637 | intel_crtc = to_intel_crtc(crtc); | |
3638 | *dpms_mode = intel_crtc->dpms_mode; | |
3639 | ||
3640 | if (!crtc->enabled) { | |
3641 | if (!mode) | |
3642 | mode = &load_detect_mode; | |
3c4fdcfb | 3643 | drm_crtc_helper_set_mode(crtc, mode, 0, 0, crtc->fb); |
79e53945 JB |
3644 | } else { |
3645 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { | |
3646 | crtc_funcs = crtc->helper_private; | |
3647 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
3648 | } | |
3649 | ||
3650 | /* Add this connector to the crtc */ | |
3651 | encoder_funcs->mode_set(encoder, &crtc->mode, &crtc->mode); | |
3652 | encoder_funcs->commit(encoder); | |
3653 | } | |
3654 | /* let the connector get through one full cycle before testing */ | |
3655 | intel_wait_for_vblank(dev); | |
3656 | ||
3657 | return crtc; | |
3658 | } | |
3659 | ||
3660 | void intel_release_load_detect_pipe(struct intel_output *intel_output, int dpms_mode) | |
3661 | { | |
3662 | struct drm_encoder *encoder = &intel_output->enc; | |
3663 | struct drm_device *dev = encoder->dev; | |
3664 | struct drm_crtc *crtc = encoder->crtc; | |
3665 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
3666 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
3667 | ||
3668 | if (intel_output->load_detect_temp) { | |
3669 | encoder->crtc = NULL; | |
03d60699 | 3670 | intel_output->base.encoder = NULL; |
79e53945 JB |
3671 | intel_output->load_detect_temp = false; |
3672 | crtc->enabled = drm_helper_crtc_in_use(crtc); | |
3673 | drm_helper_disable_unused_functions(dev); | |
3674 | } | |
3675 | ||
3676 | /* Switch crtc and output back off if necessary */ | |
3677 | if (crtc->enabled && dpms_mode != DRM_MODE_DPMS_ON) { | |
3678 | if (encoder->crtc == crtc) | |
3679 | encoder_funcs->dpms(encoder, dpms_mode); | |
3680 | crtc_funcs->dpms(crtc, dpms_mode); | |
3681 | } | |
3682 | } | |
3683 | ||
3684 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
3685 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
3686 | { | |
3687 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3688 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3689 | int pipe = intel_crtc->pipe; | |
3690 | u32 dpll = I915_READ((pipe == 0) ? DPLL_A : DPLL_B); | |
3691 | u32 fp; | |
3692 | intel_clock_t clock; | |
3693 | ||
3694 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
3695 | fp = I915_READ((pipe == 0) ? FPA0 : FPB0); | |
3696 | else | |
3697 | fp = I915_READ((pipe == 0) ? FPA1 : FPB1); | |
3698 | ||
3699 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
3700 | if (IS_PINEVIEW(dev)) { |
3701 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
3702 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
3703 | } else { |
3704 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
3705 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
3706 | } | |
3707 | ||
79e53945 | 3708 | if (IS_I9XX(dev)) { |
f2b115e6 AJ |
3709 | if (IS_PINEVIEW(dev)) |
3710 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
3711 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
3712 | else |
3713 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
3714 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
3715 | ||
3716 | switch (dpll & DPLL_MODE_MASK) { | |
3717 | case DPLLB_MODE_DAC_SERIAL: | |
3718 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
3719 | 5 : 10; | |
3720 | break; | |
3721 | case DPLLB_MODE_LVDS: | |
3722 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
3723 | 7 : 14; | |
3724 | break; | |
3725 | default: | |
28c97730 | 3726 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
3727 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
3728 | return 0; | |
3729 | } | |
3730 | ||
3731 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 3732 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
3733 | } else { |
3734 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
3735 | ||
3736 | if (is_lvds) { | |
3737 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
3738 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
3739 | clock.p2 = 14; | |
3740 | ||
3741 | if ((dpll & PLL_REF_INPUT_MASK) == | |
3742 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
3743 | /* XXX: might not be 66MHz */ | |
2177832f | 3744 | intel_clock(dev, 66000, &clock); |
79e53945 | 3745 | } else |
2177832f | 3746 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
3747 | } else { |
3748 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
3749 | clock.p1 = 2; | |
3750 | else { | |
3751 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
3752 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
3753 | } | |
3754 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
3755 | clock.p2 = 4; | |
3756 | else | |
3757 | clock.p2 = 2; | |
3758 | ||
2177832f | 3759 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
3760 | } |
3761 | } | |
3762 | ||
3763 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
3764 | * i830PllIsValid() because it relies on the xf86_config connector | |
3765 | * configuration being accurate, which it isn't necessarily. | |
3766 | */ | |
3767 | ||
3768 | return clock.dot; | |
3769 | } | |
3770 | ||
3771 | /** Returns the currently programmed mode of the given pipe. */ | |
3772 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
3773 | struct drm_crtc *crtc) | |
3774 | { | |
3775 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3776 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3777 | int pipe = intel_crtc->pipe; | |
3778 | struct drm_display_mode *mode; | |
3779 | int htot = I915_READ((pipe == 0) ? HTOTAL_A : HTOTAL_B); | |
3780 | int hsync = I915_READ((pipe == 0) ? HSYNC_A : HSYNC_B); | |
3781 | int vtot = I915_READ((pipe == 0) ? VTOTAL_A : VTOTAL_B); | |
3782 | int vsync = I915_READ((pipe == 0) ? VSYNC_A : VSYNC_B); | |
3783 | ||
3784 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
3785 | if (!mode) | |
3786 | return NULL; | |
3787 | ||
3788 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
3789 | mode->hdisplay = (htot & 0xffff) + 1; | |
3790 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
3791 | mode->hsync_start = (hsync & 0xffff) + 1; | |
3792 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
3793 | mode->vdisplay = (vtot & 0xffff) + 1; | |
3794 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
3795 | mode->vsync_start = (vsync & 0xffff) + 1; | |
3796 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
3797 | ||
3798 | drm_mode_set_name(mode); | |
3799 | drm_mode_set_crtcinfo(mode, 0); | |
3800 | ||
3801 | return mode; | |
3802 | } | |
3803 | ||
652c393a JB |
3804 | #define GPU_IDLE_TIMEOUT 500 /* ms */ |
3805 | ||
3806 | /* When this timer fires, we've been idle for awhile */ | |
3807 | static void intel_gpu_idle_timer(unsigned long arg) | |
3808 | { | |
3809 | struct drm_device *dev = (struct drm_device *)arg; | |
3810 | drm_i915_private_t *dev_priv = dev->dev_private; | |
3811 | ||
44d98a61 | 3812 | DRM_DEBUG_DRIVER("idle timer fired, downclocking\n"); |
652c393a JB |
3813 | |
3814 | dev_priv->busy = false; | |
3815 | ||
01dfba93 | 3816 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
3817 | } |
3818 | ||
652c393a JB |
3819 | #define CRTC_IDLE_TIMEOUT 1000 /* ms */ |
3820 | ||
3821 | static void intel_crtc_idle_timer(unsigned long arg) | |
3822 | { | |
3823 | struct intel_crtc *intel_crtc = (struct intel_crtc *)arg; | |
3824 | struct drm_crtc *crtc = &intel_crtc->base; | |
3825 | drm_i915_private_t *dev_priv = crtc->dev->dev_private; | |
3826 | ||
44d98a61 | 3827 | DRM_DEBUG_DRIVER("idle timer fired, downclocking\n"); |
652c393a JB |
3828 | |
3829 | intel_crtc->busy = false; | |
3830 | ||
01dfba93 | 3831 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
3832 | } |
3833 | ||
3834 | static void intel_increase_pllclock(struct drm_crtc *crtc, bool schedule) | |
3835 | { | |
3836 | struct drm_device *dev = crtc->dev; | |
3837 | drm_i915_private_t *dev_priv = dev->dev_private; | |
3838 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3839 | int pipe = intel_crtc->pipe; | |
3840 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; | |
3841 | int dpll = I915_READ(dpll_reg); | |
3842 | ||
f2b115e6 | 3843 | if (IS_IRONLAKE(dev)) |
652c393a JB |
3844 | return; |
3845 | ||
3846 | if (!dev_priv->lvds_downclock_avail) | |
3847 | return; | |
3848 | ||
3849 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { | |
44d98a61 | 3850 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a JB |
3851 | |
3852 | /* Unlock panel regs */ | |
3853 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | (0xabcd << 16)); | |
3854 | ||
3855 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
3856 | I915_WRITE(dpll_reg, dpll); | |
3857 | dpll = I915_READ(dpll_reg); | |
3858 | intel_wait_for_vblank(dev); | |
3859 | dpll = I915_READ(dpll_reg); | |
3860 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 3861 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a JB |
3862 | |
3863 | /* ...and lock them again */ | |
3864 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); | |
3865 | } | |
3866 | ||
3867 | /* Schedule downclock */ | |
3868 | if (schedule) | |
3869 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
3870 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
3871 | } | |
3872 | ||
3873 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
3874 | { | |
3875 | struct drm_device *dev = crtc->dev; | |
3876 | drm_i915_private_t *dev_priv = dev->dev_private; | |
3877 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3878 | int pipe = intel_crtc->pipe; | |
3879 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; | |
3880 | int dpll = I915_READ(dpll_reg); | |
3881 | ||
f2b115e6 | 3882 | if (IS_IRONLAKE(dev)) |
652c393a JB |
3883 | return; |
3884 | ||
3885 | if (!dev_priv->lvds_downclock_avail) | |
3886 | return; | |
3887 | ||
3888 | /* | |
3889 | * Since this is called by a timer, we should never get here in | |
3890 | * the manual case. | |
3891 | */ | |
3892 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
44d98a61 | 3893 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a JB |
3894 | |
3895 | /* Unlock panel regs */ | |
3896 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | (0xabcd << 16)); | |
3897 | ||
3898 | dpll |= DISPLAY_RATE_SELECT_FPA1; | |
3899 | I915_WRITE(dpll_reg, dpll); | |
3900 | dpll = I915_READ(dpll_reg); | |
3901 | intel_wait_for_vblank(dev); | |
3902 | dpll = I915_READ(dpll_reg); | |
3903 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 3904 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
3905 | |
3906 | /* ...and lock them again */ | |
3907 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); | |
3908 | } | |
3909 | ||
3910 | } | |
3911 | ||
3912 | /** | |
3913 | * intel_idle_update - adjust clocks for idleness | |
3914 | * @work: work struct | |
3915 | * | |
3916 | * Either the GPU or display (or both) went idle. Check the busy status | |
3917 | * here and adjust the CRTC and GPU clocks as necessary. | |
3918 | */ | |
3919 | static void intel_idle_update(struct work_struct *work) | |
3920 | { | |
3921 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, | |
3922 | idle_work); | |
3923 | struct drm_device *dev = dev_priv->dev; | |
3924 | struct drm_crtc *crtc; | |
3925 | struct intel_crtc *intel_crtc; | |
3926 | ||
3927 | if (!i915_powersave) | |
3928 | return; | |
3929 | ||
3930 | mutex_lock(&dev->struct_mutex); | |
3931 | ||
652c393a JB |
3932 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
3933 | /* Skip inactive CRTCs */ | |
3934 | if (!crtc->fb) | |
3935 | continue; | |
3936 | ||
3937 | intel_crtc = to_intel_crtc(crtc); | |
3938 | if (!intel_crtc->busy) | |
3939 | intel_decrease_pllclock(crtc); | |
3940 | } | |
3941 | ||
3942 | mutex_unlock(&dev->struct_mutex); | |
3943 | } | |
3944 | ||
3945 | /** | |
3946 | * intel_mark_busy - mark the GPU and possibly the display busy | |
3947 | * @dev: drm device | |
3948 | * @obj: object we're operating on | |
3949 | * | |
3950 | * Callers can use this function to indicate that the GPU is busy processing | |
3951 | * commands. If @obj matches one of the CRTC objects (i.e. it's a scanout | |
3952 | * buffer), we'll also mark the display as busy, so we know to increase its | |
3953 | * clock frequency. | |
3954 | */ | |
3955 | void intel_mark_busy(struct drm_device *dev, struct drm_gem_object *obj) | |
3956 | { | |
3957 | drm_i915_private_t *dev_priv = dev->dev_private; | |
3958 | struct drm_crtc *crtc = NULL; | |
3959 | struct intel_framebuffer *intel_fb; | |
3960 | struct intel_crtc *intel_crtc; | |
3961 | ||
5e17ee74 ZW |
3962 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3963 | return; | |
3964 | ||
cda9d05c | 3965 | if (!dev_priv->busy) |
28cf798f | 3966 | dev_priv->busy = true; |
cda9d05c | 3967 | else |
28cf798f CW |
3968 | mod_timer(&dev_priv->idle_timer, jiffies + |
3969 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); | |
652c393a JB |
3970 | |
3971 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
3972 | if (!crtc->fb) | |
3973 | continue; | |
3974 | ||
3975 | intel_crtc = to_intel_crtc(crtc); | |
3976 | intel_fb = to_intel_framebuffer(crtc->fb); | |
3977 | if (intel_fb->obj == obj) { | |
3978 | if (!intel_crtc->busy) { | |
3979 | /* Non-busy -> busy, upclock */ | |
3980 | intel_increase_pllclock(crtc, true); | |
3981 | intel_crtc->busy = true; | |
3982 | } else { | |
3983 | /* Busy -> busy, put off timer */ | |
3984 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
3985 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
3986 | } | |
3987 | } | |
3988 | } | |
3989 | } | |
3990 | ||
79e53945 JB |
3991 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
3992 | { | |
3993 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3994 | ||
3995 | drm_crtc_cleanup(crtc); | |
3996 | kfree(intel_crtc); | |
3997 | } | |
3998 | ||
6b95a207 KH |
3999 | struct intel_unpin_work { |
4000 | struct work_struct work; | |
4001 | struct drm_device *dev; | |
4002 | struct drm_gem_object *obj; | |
4003 | struct drm_pending_vblank_event *event; | |
4004 | int pending; | |
4005 | }; | |
4006 | ||
4007 | static void intel_unpin_work_fn(struct work_struct *__work) | |
4008 | { | |
4009 | struct intel_unpin_work *work = | |
4010 | container_of(__work, struct intel_unpin_work, work); | |
4011 | ||
4012 | mutex_lock(&work->dev->struct_mutex); | |
4013 | i915_gem_object_unpin(work->obj); | |
4014 | drm_gem_object_unreference(work->obj); | |
4015 | mutex_unlock(&work->dev->struct_mutex); | |
4016 | kfree(work); | |
4017 | } | |
4018 | ||
4019 | void intel_finish_page_flip(struct drm_device *dev, int pipe) | |
4020 | { | |
4021 | drm_i915_private_t *dev_priv = dev->dev_private; | |
4022 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
4023 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4024 | struct intel_unpin_work *work; | |
4025 | struct drm_i915_gem_object *obj_priv; | |
4026 | struct drm_pending_vblank_event *e; | |
4027 | struct timeval now; | |
4028 | unsigned long flags; | |
4029 | ||
4030 | /* Ignore early vblank irqs */ | |
4031 | if (intel_crtc == NULL) | |
4032 | return; | |
4033 | ||
4034 | spin_lock_irqsave(&dev->event_lock, flags); | |
4035 | work = intel_crtc->unpin_work; | |
4036 | if (work == NULL || !work->pending) { | |
4037 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4038 | return; | |
4039 | } | |
4040 | ||
4041 | intel_crtc->unpin_work = NULL; | |
4042 | drm_vblank_put(dev, intel_crtc->pipe); | |
4043 | ||
4044 | if (work->event) { | |
4045 | e = work->event; | |
4046 | do_gettimeofday(&now); | |
4047 | e->event.sequence = drm_vblank_count(dev, intel_crtc->pipe); | |
4048 | e->event.tv_sec = now.tv_sec; | |
4049 | e->event.tv_usec = now.tv_usec; | |
4050 | list_add_tail(&e->base.link, | |
4051 | &e->base.file_priv->event_list); | |
4052 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
4053 | } | |
4054 | ||
4055 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4056 | ||
4057 | obj_priv = work->obj->driver_private; | |
4058 | if (atomic_dec_and_test(&obj_priv->pending_flip)) | |
4059 | DRM_WAKEUP(&dev_priv->pending_flip_queue); | |
4060 | schedule_work(&work->work); | |
4061 | } | |
4062 | ||
4063 | void intel_prepare_page_flip(struct drm_device *dev, int plane) | |
4064 | { | |
4065 | drm_i915_private_t *dev_priv = dev->dev_private; | |
4066 | struct intel_crtc *intel_crtc = | |
4067 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
4068 | unsigned long flags; | |
4069 | ||
4070 | spin_lock_irqsave(&dev->event_lock, flags); | |
4071 | if (intel_crtc->unpin_work) | |
4072 | intel_crtc->unpin_work->pending = 1; | |
4073 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4074 | } | |
4075 | ||
4076 | static int intel_crtc_page_flip(struct drm_crtc *crtc, | |
4077 | struct drm_framebuffer *fb, | |
4078 | struct drm_pending_vblank_event *event) | |
4079 | { | |
4080 | struct drm_device *dev = crtc->dev; | |
4081 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4082 | struct intel_framebuffer *intel_fb; | |
4083 | struct drm_i915_gem_object *obj_priv; | |
4084 | struct drm_gem_object *obj; | |
4085 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4086 | struct intel_unpin_work *work; | |
4087 | unsigned long flags; | |
4088 | int ret; | |
4089 | RING_LOCALS; | |
4090 | ||
4091 | work = kzalloc(sizeof *work, GFP_KERNEL); | |
4092 | if (work == NULL) | |
4093 | return -ENOMEM; | |
4094 | ||
4095 | mutex_lock(&dev->struct_mutex); | |
4096 | ||
4097 | work->event = event; | |
4098 | work->dev = crtc->dev; | |
4099 | intel_fb = to_intel_framebuffer(crtc->fb); | |
4100 | work->obj = intel_fb->obj; | |
4101 | INIT_WORK(&work->work, intel_unpin_work_fn); | |
4102 | ||
4103 | /* We borrow the event spin lock for protecting unpin_work */ | |
4104 | spin_lock_irqsave(&dev->event_lock, flags); | |
4105 | if (intel_crtc->unpin_work) { | |
4106 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4107 | kfree(work); | |
4108 | mutex_unlock(&dev->struct_mutex); | |
4109 | return -EBUSY; | |
4110 | } | |
4111 | intel_crtc->unpin_work = work; | |
4112 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4113 | ||
4114 | intel_fb = to_intel_framebuffer(fb); | |
4115 | obj = intel_fb->obj; | |
4116 | ||
4117 | ret = intel_pin_and_fence_fb_obj(dev, obj); | |
4118 | if (ret != 0) { | |
4119 | kfree(work); | |
4120 | mutex_unlock(&dev->struct_mutex); | |
4121 | return ret; | |
4122 | } | |
4123 | ||
4124 | /* Reference the old fb object for the scheduled work. */ | |
4125 | drm_gem_object_reference(work->obj); | |
4126 | ||
4127 | crtc->fb = fb; | |
4128 | i915_gem_object_flush_write_domain(obj); | |
4129 | drm_vblank_get(dev, intel_crtc->pipe); | |
4130 | obj_priv = obj->driver_private; | |
4131 | atomic_inc(&obj_priv->pending_flip); | |
4132 | ||
4133 | BEGIN_LP_RING(4); | |
4134 | OUT_RING(MI_DISPLAY_FLIP | | |
4135 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
4136 | OUT_RING(fb->pitch); | |
22fd0fab JB |
4137 | if (IS_I965G(dev)) { |
4138 | OUT_RING(obj_priv->gtt_offset | obj_priv->tiling_mode); | |
4139 | OUT_RING((fb->width << 16) | fb->height); | |
4140 | } else { | |
4141 | OUT_RING(obj_priv->gtt_offset); | |
4142 | OUT_RING(MI_NOOP); | |
4143 | } | |
6b95a207 KH |
4144 | ADVANCE_LP_RING(); |
4145 | ||
4146 | mutex_unlock(&dev->struct_mutex); | |
4147 | ||
4148 | return 0; | |
4149 | } | |
4150 | ||
79e53945 JB |
4151 | static const struct drm_crtc_helper_funcs intel_helper_funcs = { |
4152 | .dpms = intel_crtc_dpms, | |
4153 | .mode_fixup = intel_crtc_mode_fixup, | |
4154 | .mode_set = intel_crtc_mode_set, | |
4155 | .mode_set_base = intel_pipe_set_base, | |
4156 | .prepare = intel_crtc_prepare, | |
4157 | .commit = intel_crtc_commit, | |
068143d3 | 4158 | .load_lut = intel_crtc_load_lut, |
79e53945 JB |
4159 | }; |
4160 | ||
4161 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
4162 | .cursor_set = intel_crtc_cursor_set, | |
4163 | .cursor_move = intel_crtc_cursor_move, | |
4164 | .gamma_set = intel_crtc_gamma_set, | |
4165 | .set_config = drm_crtc_helper_set_config, | |
4166 | .destroy = intel_crtc_destroy, | |
6b95a207 | 4167 | .page_flip = intel_crtc_page_flip, |
79e53945 JB |
4168 | }; |
4169 | ||
4170 | ||
b358d0a6 | 4171 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 4172 | { |
22fd0fab | 4173 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
4174 | struct intel_crtc *intel_crtc; |
4175 | int i; | |
4176 | ||
4177 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
4178 | if (intel_crtc == NULL) | |
4179 | return; | |
4180 | ||
4181 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
4182 | ||
4183 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
4184 | intel_crtc->pipe = pipe; | |
7662c8bd | 4185 | intel_crtc->plane = pipe; |
79e53945 JB |
4186 | for (i = 0; i < 256; i++) { |
4187 | intel_crtc->lut_r[i] = i; | |
4188 | intel_crtc->lut_g[i] = i; | |
4189 | intel_crtc->lut_b[i] = i; | |
4190 | } | |
4191 | ||
80824003 JB |
4192 | /* Swap pipes & planes for FBC on pre-965 */ |
4193 | intel_crtc->pipe = pipe; | |
4194 | intel_crtc->plane = pipe; | |
4195 | if (IS_MOBILE(dev) && (IS_I9XX(dev) && !IS_I965G(dev))) { | |
28c97730 | 4196 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
80824003 JB |
4197 | intel_crtc->plane = ((pipe == 0) ? 1 : 0); |
4198 | } | |
4199 | ||
22fd0fab JB |
4200 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
4201 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
4202 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
4203 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
4204 | ||
79e53945 JB |
4205 | intel_crtc->cursor_addr = 0; |
4206 | intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF; | |
4207 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); | |
4208 | ||
652c393a JB |
4209 | intel_crtc->busy = false; |
4210 | ||
4211 | setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer, | |
4212 | (unsigned long)intel_crtc); | |
79e53945 JB |
4213 | } |
4214 | ||
08d7b3d1 CW |
4215 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
4216 | struct drm_file *file_priv) | |
4217 | { | |
4218 | drm_i915_private_t *dev_priv = dev->dev_private; | |
4219 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; | |
c05422d5 DV |
4220 | struct drm_mode_object *drmmode_obj; |
4221 | struct intel_crtc *crtc; | |
08d7b3d1 CW |
4222 | |
4223 | if (!dev_priv) { | |
4224 | DRM_ERROR("called with no initialization\n"); | |
4225 | return -EINVAL; | |
4226 | } | |
4227 | ||
c05422d5 DV |
4228 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
4229 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 4230 | |
c05422d5 | 4231 | if (!drmmode_obj) { |
08d7b3d1 CW |
4232 | DRM_ERROR("no such CRTC id\n"); |
4233 | return -EINVAL; | |
4234 | } | |
4235 | ||
c05422d5 DV |
4236 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
4237 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 4238 | |
c05422d5 | 4239 | return 0; |
08d7b3d1 CW |
4240 | } |
4241 | ||
79e53945 JB |
4242 | struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe) |
4243 | { | |
4244 | struct drm_crtc *crtc = NULL; | |
4245 | ||
4246 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
4247 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4248 | if (intel_crtc->pipe == pipe) | |
4249 | break; | |
4250 | } | |
4251 | return crtc; | |
4252 | } | |
4253 | ||
b358d0a6 | 4254 | static int intel_connector_clones(struct drm_device *dev, int type_mask) |
79e53945 JB |
4255 | { |
4256 | int index_mask = 0; | |
4257 | struct drm_connector *connector; | |
4258 | int entry = 0; | |
4259 | ||
4260 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
4261 | struct intel_output *intel_output = to_intel_output(connector); | |
f8aed700 | 4262 | if (type_mask & intel_output->clone_mask) |
79e53945 JB |
4263 | index_mask |= (1 << entry); |
4264 | entry++; | |
4265 | } | |
4266 | return index_mask; | |
4267 | } | |
4268 | ||
4269 | ||
4270 | static void intel_setup_outputs(struct drm_device *dev) | |
4271 | { | |
725e30ad | 4272 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
4273 | struct drm_connector *connector; |
4274 | ||
4275 | intel_crt_init(dev); | |
4276 | ||
4277 | /* Set up integrated LVDS */ | |
541998a1 | 4278 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
79e53945 JB |
4279 | intel_lvds_init(dev); |
4280 | ||
f2b115e6 | 4281 | if (IS_IRONLAKE(dev)) { |
30ad48b7 ZW |
4282 | int found; |
4283 | ||
32f9d658 ZW |
4284 | if (IS_MOBILE(dev) && (I915_READ(DP_A) & DP_DETECTED)) |
4285 | intel_dp_init(dev, DP_A); | |
4286 | ||
30ad48b7 ZW |
4287 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
4288 | /* check SDVOB */ | |
4289 | /* found = intel_sdvo_init(dev, HDMIB); */ | |
4290 | found = 0; | |
4291 | if (!found) | |
4292 | intel_hdmi_init(dev, HDMIB); | |
5eb08b69 ZW |
4293 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
4294 | intel_dp_init(dev, PCH_DP_B); | |
30ad48b7 ZW |
4295 | } |
4296 | ||
4297 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
4298 | intel_hdmi_init(dev, HDMIC); | |
4299 | ||
4300 | if (I915_READ(HDMID) & PORT_DETECTED) | |
4301 | intel_hdmi_init(dev, HDMID); | |
4302 | ||
5eb08b69 ZW |
4303 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
4304 | intel_dp_init(dev, PCH_DP_C); | |
4305 | ||
4306 | if (I915_READ(PCH_DP_D) & DP_DETECTED) | |
4307 | intel_dp_init(dev, PCH_DP_D); | |
4308 | ||
103a196f | 4309 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 4310 | bool found = false; |
7d57382e | 4311 | |
725e30ad | 4312 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 4313 | DRM_DEBUG_KMS("probing SDVOB\n"); |
725e30ad | 4314 | found = intel_sdvo_init(dev, SDVOB); |
b01f2c3a JB |
4315 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
4316 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
725e30ad | 4317 | intel_hdmi_init(dev, SDVOB); |
b01f2c3a | 4318 | } |
27185ae1 | 4319 | |
b01f2c3a JB |
4320 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
4321 | DRM_DEBUG_KMS("probing DP_B\n"); | |
a4fc5ed6 | 4322 | intel_dp_init(dev, DP_B); |
b01f2c3a | 4323 | } |
725e30ad | 4324 | } |
13520b05 KH |
4325 | |
4326 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 4327 | |
b01f2c3a JB |
4328 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
4329 | DRM_DEBUG_KMS("probing SDVOC\n"); | |
725e30ad | 4330 | found = intel_sdvo_init(dev, SDVOC); |
b01f2c3a | 4331 | } |
27185ae1 ML |
4332 | |
4333 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { | |
4334 | ||
b01f2c3a JB |
4335 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
4336 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
725e30ad | 4337 | intel_hdmi_init(dev, SDVOC); |
b01f2c3a JB |
4338 | } |
4339 | if (SUPPORTS_INTEGRATED_DP(dev)) { | |
4340 | DRM_DEBUG_KMS("probing DP_C\n"); | |
a4fc5ed6 | 4341 | intel_dp_init(dev, DP_C); |
b01f2c3a | 4342 | } |
725e30ad | 4343 | } |
27185ae1 | 4344 | |
b01f2c3a JB |
4345 | if (SUPPORTS_INTEGRATED_DP(dev) && |
4346 | (I915_READ(DP_D) & DP_DETECTED)) { | |
4347 | DRM_DEBUG_KMS("probing DP_D\n"); | |
a4fc5ed6 | 4348 | intel_dp_init(dev, DP_D); |
b01f2c3a | 4349 | } |
103a196f | 4350 | } else if (IS_I8XX(dev)) |
79e53945 JB |
4351 | intel_dvo_init(dev); |
4352 | ||
103a196f | 4353 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
4354 | intel_tv_init(dev); |
4355 | ||
4356 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
4357 | struct intel_output *intel_output = to_intel_output(connector); | |
4358 | struct drm_encoder *encoder = &intel_output->enc; | |
79e53945 | 4359 | |
f8aed700 ML |
4360 | encoder->possible_crtcs = intel_output->crtc_mask; |
4361 | encoder->possible_clones = intel_connector_clones(dev, | |
4362 | intel_output->clone_mask); | |
79e53945 JB |
4363 | } |
4364 | } | |
4365 | ||
4366 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
4367 | { | |
4368 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
4369 | struct drm_device *dev = fb->dev; | |
4370 | ||
4371 | if (fb->fbdev) | |
4372 | intelfb_remove(dev, fb); | |
4373 | ||
4374 | drm_framebuffer_cleanup(fb); | |
4375 | mutex_lock(&dev->struct_mutex); | |
4376 | drm_gem_object_unreference(intel_fb->obj); | |
4377 | mutex_unlock(&dev->struct_mutex); | |
4378 | ||
4379 | kfree(intel_fb); | |
4380 | } | |
4381 | ||
4382 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
4383 | struct drm_file *file_priv, | |
4384 | unsigned int *handle) | |
4385 | { | |
4386 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
4387 | struct drm_gem_object *object = intel_fb->obj; | |
4388 | ||
4389 | return drm_gem_handle_create(file_priv, object, handle); | |
4390 | } | |
4391 | ||
4392 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
4393 | .destroy = intel_user_framebuffer_destroy, | |
4394 | .create_handle = intel_user_framebuffer_create_handle, | |
4395 | }; | |
4396 | ||
4397 | int intel_framebuffer_create(struct drm_device *dev, | |
4398 | struct drm_mode_fb_cmd *mode_cmd, | |
4399 | struct drm_framebuffer **fb, | |
4400 | struct drm_gem_object *obj) | |
4401 | { | |
4402 | struct intel_framebuffer *intel_fb; | |
4403 | int ret; | |
4404 | ||
4405 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
4406 | if (!intel_fb) | |
4407 | return -ENOMEM; | |
4408 | ||
4409 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); | |
4410 | if (ret) { | |
4411 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
4412 | return ret; | |
4413 | } | |
4414 | ||
4415 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
4416 | ||
4417 | intel_fb->obj = obj; | |
4418 | ||
4419 | *fb = &intel_fb->base; | |
4420 | ||
4421 | return 0; | |
4422 | } | |
4423 | ||
4424 | ||
4425 | static struct drm_framebuffer * | |
4426 | intel_user_framebuffer_create(struct drm_device *dev, | |
4427 | struct drm_file *filp, | |
4428 | struct drm_mode_fb_cmd *mode_cmd) | |
4429 | { | |
4430 | struct drm_gem_object *obj; | |
4431 | struct drm_framebuffer *fb; | |
4432 | int ret; | |
4433 | ||
4434 | obj = drm_gem_object_lookup(dev, filp, mode_cmd->handle); | |
4435 | if (!obj) | |
4436 | return NULL; | |
4437 | ||
4438 | ret = intel_framebuffer_create(dev, mode_cmd, &fb, obj); | |
4439 | if (ret) { | |
496818f0 | 4440 | mutex_lock(&dev->struct_mutex); |
79e53945 | 4441 | drm_gem_object_unreference(obj); |
496818f0 | 4442 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
4443 | return NULL; |
4444 | } | |
4445 | ||
4446 | return fb; | |
4447 | } | |
4448 | ||
79e53945 | 4449 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 JB |
4450 | .fb_create = intel_user_framebuffer_create, |
4451 | .fb_changed = intelfb_probe, | |
4452 | }; | |
4453 | ||
9ea8d059 CW |
4454 | static struct drm_gem_object * |
4455 | intel_alloc_power_context(struct drm_device *dev) | |
4456 | { | |
4457 | struct drm_gem_object *pwrctx; | |
4458 | int ret; | |
4459 | ||
4460 | pwrctx = drm_gem_object_alloc(dev, 4096); | |
4461 | if (!pwrctx) { | |
4462 | DRM_DEBUG("failed to alloc power context, RC6 disabled\n"); | |
4463 | return NULL; | |
4464 | } | |
4465 | ||
4466 | mutex_lock(&dev->struct_mutex); | |
4467 | ret = i915_gem_object_pin(pwrctx, 4096); | |
4468 | if (ret) { | |
4469 | DRM_ERROR("failed to pin power context: %d\n", ret); | |
4470 | goto err_unref; | |
4471 | } | |
4472 | ||
4473 | ret = i915_gem_object_set_to_gtt_domain(pwrctx, 1); | |
4474 | if (ret) { | |
4475 | DRM_ERROR("failed to set-domain on power context: %d\n", ret); | |
4476 | goto err_unpin; | |
4477 | } | |
4478 | mutex_unlock(&dev->struct_mutex); | |
4479 | ||
4480 | return pwrctx; | |
4481 | ||
4482 | err_unpin: | |
4483 | i915_gem_object_unpin(pwrctx); | |
4484 | err_unref: | |
4485 | drm_gem_object_unreference(pwrctx); | |
4486 | mutex_unlock(&dev->struct_mutex); | |
4487 | return NULL; | |
4488 | } | |
4489 | ||
652c393a JB |
4490 | void intel_init_clock_gating(struct drm_device *dev) |
4491 | { | |
4492 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4493 | ||
4494 | /* | |
4495 | * Disable clock gating reported to work incorrectly according to the | |
4496 | * specs, but enable as much else as we can. | |
4497 | */ | |
f2b115e6 | 4498 | if (IS_IRONLAKE(dev)) { |
c03342fa ZW |
4499 | return; |
4500 | } else if (IS_G4X(dev)) { | |
652c393a JB |
4501 | uint32_t dspclk_gate; |
4502 | I915_WRITE(RENCLK_GATE_D1, 0); | |
4503 | I915_WRITE(RENCLK_GATE_D2, VF_UNIT_CLOCK_GATE_DISABLE | | |
4504 | GS_UNIT_CLOCK_GATE_DISABLE | | |
4505 | CL_UNIT_CLOCK_GATE_DISABLE); | |
4506 | I915_WRITE(RAMCLK_GATE_D, 0); | |
4507 | dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE | | |
4508 | OVRUNIT_CLOCK_GATE_DISABLE | | |
4509 | OVCUNIT_CLOCK_GATE_DISABLE; | |
4510 | if (IS_GM45(dev)) | |
4511 | dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE; | |
4512 | I915_WRITE(DSPCLK_GATE_D, dspclk_gate); | |
4513 | } else if (IS_I965GM(dev)) { | |
4514 | I915_WRITE(RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE); | |
4515 | I915_WRITE(RENCLK_GATE_D2, 0); | |
4516 | I915_WRITE(DSPCLK_GATE_D, 0); | |
4517 | I915_WRITE(RAMCLK_GATE_D, 0); | |
4518 | I915_WRITE16(DEUC, 0); | |
4519 | } else if (IS_I965G(dev)) { | |
4520 | I915_WRITE(RENCLK_GATE_D1, I965_RCZ_CLOCK_GATE_DISABLE | | |
4521 | I965_RCC_CLOCK_GATE_DISABLE | | |
4522 | I965_RCPB_CLOCK_GATE_DISABLE | | |
4523 | I965_ISC_CLOCK_GATE_DISABLE | | |
4524 | I965_FBC_CLOCK_GATE_DISABLE); | |
4525 | I915_WRITE(RENCLK_GATE_D2, 0); | |
4526 | } else if (IS_I9XX(dev)) { | |
4527 | u32 dstate = I915_READ(D_STATE); | |
4528 | ||
4529 | dstate |= DSTATE_PLL_D3_OFF | DSTATE_GFX_CLOCK_GATING | | |
4530 | DSTATE_DOT_CLOCK_GATING; | |
4531 | I915_WRITE(D_STATE, dstate); | |
f0f8a9ce | 4532 | } else if (IS_I85X(dev) || IS_I865G(dev)) { |
652c393a JB |
4533 | I915_WRITE(RENCLK_GATE_D1, SV_CLOCK_GATE_DISABLE); |
4534 | } else if (IS_I830(dev)) { | |
4535 | I915_WRITE(DSPCLK_GATE_D, OVRUNIT_CLOCK_GATE_DISABLE); | |
4536 | } | |
97f5ab66 JB |
4537 | |
4538 | /* | |
4539 | * GPU can automatically power down the render unit if given a page | |
4540 | * to save state. | |
4541 | */ | |
1d3c36ad | 4542 | if (I915_HAS_RC6(dev) && drm_core_check_feature(dev, DRIVER_MODESET)) { |
9ea8d059 | 4543 | struct drm_i915_gem_object *obj_priv = NULL; |
97f5ab66 | 4544 | |
7e8b60fa AL |
4545 | if (dev_priv->pwrctx) { |
4546 | obj_priv = dev_priv->pwrctx->driver_private; | |
4547 | } else { | |
9ea8d059 | 4548 | struct drm_gem_object *pwrctx; |
97f5ab66 | 4549 | |
9ea8d059 CW |
4550 | pwrctx = intel_alloc_power_context(dev); |
4551 | if (pwrctx) { | |
4552 | dev_priv->pwrctx = pwrctx; | |
4553 | obj_priv = pwrctx->driver_private; | |
7e8b60fa | 4554 | } |
7e8b60fa | 4555 | } |
97f5ab66 | 4556 | |
9ea8d059 CW |
4557 | if (obj_priv) { |
4558 | I915_WRITE(PWRCTXA, obj_priv->gtt_offset | PWRCTX_EN); | |
4559 | I915_WRITE(MCHBAR_RENDER_STANDBY, | |
4560 | I915_READ(MCHBAR_RENDER_STANDBY) & ~RCX_SW_EXIT); | |
4561 | } | |
97f5ab66 | 4562 | } |
652c393a JB |
4563 | } |
4564 | ||
e70236a8 JB |
4565 | /* Set up chip specific display functions */ |
4566 | static void intel_init_display(struct drm_device *dev) | |
4567 | { | |
4568 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4569 | ||
4570 | /* We always want a DPMS function */ | |
f2b115e6 AJ |
4571 | if (IS_IRONLAKE(dev)) |
4572 | dev_priv->display.dpms = ironlake_crtc_dpms; | |
e70236a8 JB |
4573 | else |
4574 | dev_priv->display.dpms = i9xx_crtc_dpms; | |
4575 | ||
4576 | /* Only mobile has FBC, leave pointers NULL for other chips */ | |
4577 | if (IS_MOBILE(dev)) { | |
74dff282 JB |
4578 | if (IS_GM45(dev)) { |
4579 | dev_priv->display.fbc_enabled = g4x_fbc_enabled; | |
4580 | dev_priv->display.enable_fbc = g4x_enable_fbc; | |
4581 | dev_priv->display.disable_fbc = g4x_disable_fbc; | |
4582 | } else if (IS_I965GM(dev) || IS_I945GM(dev) || IS_I915GM(dev)) { | |
e70236a8 JB |
4583 | dev_priv->display.fbc_enabled = i8xx_fbc_enabled; |
4584 | dev_priv->display.enable_fbc = i8xx_enable_fbc; | |
4585 | dev_priv->display.disable_fbc = i8xx_disable_fbc; | |
4586 | } | |
74dff282 | 4587 | /* 855GM needs testing */ |
e70236a8 JB |
4588 | } |
4589 | ||
4590 | /* Returns the core display clock speed */ | |
f2b115e6 | 4591 | if (IS_I945G(dev) || (IS_G33(dev) && ! IS_PINEVIEW_M(dev))) |
e70236a8 JB |
4592 | dev_priv->display.get_display_clock_speed = |
4593 | i945_get_display_clock_speed; | |
4594 | else if (IS_I915G(dev)) | |
4595 | dev_priv->display.get_display_clock_speed = | |
4596 | i915_get_display_clock_speed; | |
f2b115e6 | 4597 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
4598 | dev_priv->display.get_display_clock_speed = |
4599 | i9xx_misc_get_display_clock_speed; | |
4600 | else if (IS_I915GM(dev)) | |
4601 | dev_priv->display.get_display_clock_speed = | |
4602 | i915gm_get_display_clock_speed; | |
4603 | else if (IS_I865G(dev)) | |
4604 | dev_priv->display.get_display_clock_speed = | |
4605 | i865_get_display_clock_speed; | |
f0f8a9ce | 4606 | else if (IS_I85X(dev)) |
e70236a8 JB |
4607 | dev_priv->display.get_display_clock_speed = |
4608 | i855_get_display_clock_speed; | |
4609 | else /* 852, 830 */ | |
4610 | dev_priv->display.get_display_clock_speed = | |
4611 | i830_get_display_clock_speed; | |
4612 | ||
4613 | /* For FIFO watermark updates */ | |
f2b115e6 | 4614 | if (IS_IRONLAKE(dev)) |
c03342fa ZW |
4615 | dev_priv->display.update_wm = NULL; |
4616 | else if (IS_G4X(dev)) | |
e70236a8 JB |
4617 | dev_priv->display.update_wm = g4x_update_wm; |
4618 | else if (IS_I965G(dev)) | |
4619 | dev_priv->display.update_wm = i965_update_wm; | |
4620 | else if (IS_I9XX(dev) || IS_MOBILE(dev)) { | |
4621 | dev_priv->display.update_wm = i9xx_update_wm; | |
4622 | dev_priv->display.get_fifo_size = i9xx_get_fifo_size; | |
4623 | } else { | |
4624 | if (IS_I85X(dev)) | |
4625 | dev_priv->display.get_fifo_size = i85x_get_fifo_size; | |
4626 | else if (IS_845G(dev)) | |
4627 | dev_priv->display.get_fifo_size = i845_get_fifo_size; | |
4628 | else | |
4629 | dev_priv->display.get_fifo_size = i830_get_fifo_size; | |
4630 | dev_priv->display.update_wm = i830_update_wm; | |
4631 | } | |
4632 | } | |
4633 | ||
79e53945 JB |
4634 | void intel_modeset_init(struct drm_device *dev) |
4635 | { | |
652c393a | 4636 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
4637 | int num_pipe; |
4638 | int i; | |
4639 | ||
4640 | drm_mode_config_init(dev); | |
4641 | ||
4642 | dev->mode_config.min_width = 0; | |
4643 | dev->mode_config.min_height = 0; | |
4644 | ||
4645 | dev->mode_config.funcs = (void *)&intel_mode_funcs; | |
4646 | ||
e70236a8 JB |
4647 | intel_init_display(dev); |
4648 | ||
79e53945 JB |
4649 | if (IS_I965G(dev)) { |
4650 | dev->mode_config.max_width = 8192; | |
4651 | dev->mode_config.max_height = 8192; | |
5e4d6fa7 KP |
4652 | } else if (IS_I9XX(dev)) { |
4653 | dev->mode_config.max_width = 4096; | |
4654 | dev->mode_config.max_height = 4096; | |
79e53945 JB |
4655 | } else { |
4656 | dev->mode_config.max_width = 2048; | |
4657 | dev->mode_config.max_height = 2048; | |
4658 | } | |
4659 | ||
4660 | /* set memory base */ | |
4661 | if (IS_I9XX(dev)) | |
4662 | dev->mode_config.fb_base = pci_resource_start(dev->pdev, 2); | |
4663 | else | |
4664 | dev->mode_config.fb_base = pci_resource_start(dev->pdev, 0); | |
4665 | ||
4666 | if (IS_MOBILE(dev) || IS_I9XX(dev)) | |
4667 | num_pipe = 2; | |
4668 | else | |
4669 | num_pipe = 1; | |
28c97730 | 4670 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
79e53945 JB |
4671 | num_pipe, num_pipe > 1 ? "s" : ""); |
4672 | ||
652c393a JB |
4673 | if (IS_I85X(dev)) |
4674 | pci_read_config_word(dev->pdev, HPLLCC, &dev_priv->orig_clock); | |
4675 | else if (IS_I9XX(dev) || IS_G4X(dev)) | |
4676 | pci_read_config_word(dev->pdev, GCFGC, &dev_priv->orig_clock); | |
4677 | ||
79e53945 JB |
4678 | for (i = 0; i < num_pipe; i++) { |
4679 | intel_crtc_init(dev, i); | |
4680 | } | |
4681 | ||
4682 | intel_setup_outputs(dev); | |
652c393a JB |
4683 | |
4684 | intel_init_clock_gating(dev); | |
4685 | ||
4686 | INIT_WORK(&dev_priv->idle_work, intel_idle_update); | |
4687 | setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, | |
4688 | (unsigned long)dev); | |
02e792fb DV |
4689 | |
4690 | intel_setup_overlay(dev); | |
85364905 | 4691 | |
f2b115e6 AJ |
4692 | if (IS_PINEVIEW(dev) && !intel_get_cxsr_latency(IS_PINEVIEW_G(dev), |
4693 | dev_priv->fsb_freq, | |
4694 | dev_priv->mem_freq)) | |
85364905 JB |
4695 | DRM_INFO("failed to find known CxSR latency " |
4696 | "(found fsb freq %d, mem freq %d), disabling CxSR\n", | |
4697 | dev_priv->fsb_freq, dev_priv->mem_freq); | |
79e53945 JB |
4698 | } |
4699 | ||
4700 | void intel_modeset_cleanup(struct drm_device *dev) | |
4701 | { | |
652c393a JB |
4702 | struct drm_i915_private *dev_priv = dev->dev_private; |
4703 | struct drm_crtc *crtc; | |
4704 | struct intel_crtc *intel_crtc; | |
4705 | ||
4706 | mutex_lock(&dev->struct_mutex); | |
4707 | ||
4708 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
4709 | /* Skip inactive CRTCs */ | |
4710 | if (!crtc->fb) | |
4711 | continue; | |
4712 | ||
4713 | intel_crtc = to_intel_crtc(crtc); | |
4714 | intel_increase_pllclock(crtc, false); | |
4715 | del_timer_sync(&intel_crtc->idle_timer); | |
4716 | } | |
4717 | ||
652c393a JB |
4718 | del_timer_sync(&dev_priv->idle_timer); |
4719 | ||
e70236a8 JB |
4720 | if (dev_priv->display.disable_fbc) |
4721 | dev_priv->display.disable_fbc(dev); | |
4722 | ||
97f5ab66 | 4723 | if (dev_priv->pwrctx) { |
c1b5dea0 KH |
4724 | struct drm_i915_gem_object *obj_priv; |
4725 | ||
4726 | obj_priv = dev_priv->pwrctx->driver_private; | |
4727 | I915_WRITE(PWRCTXA, obj_priv->gtt_offset &~ PWRCTX_EN); | |
4728 | I915_READ(PWRCTXA); | |
97f5ab66 JB |
4729 | i915_gem_object_unpin(dev_priv->pwrctx); |
4730 | drm_gem_object_unreference(dev_priv->pwrctx); | |
4731 | } | |
4732 | ||
69341a5e KH |
4733 | mutex_unlock(&dev->struct_mutex); |
4734 | ||
79e53945 JB |
4735 | drm_mode_config_cleanup(dev); |
4736 | } | |
4737 | ||
4738 | ||
4739 | /* current intel driver doesn't take advantage of encoders | |
4740 | always give back the encoder for the connector | |
4741 | */ | |
4742 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) | |
4743 | { | |
4744 | struct intel_output *intel_output = to_intel_output(connector); | |
4745 | ||
4746 | return &intel_output->enc; | |
4747 | } | |
28d52043 DA |
4748 | |
4749 | /* | |
4750 | * set vga decode state - true == enable VGA decode | |
4751 | */ | |
4752 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
4753 | { | |
4754 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4755 | u16 gmch_ctrl; | |
4756 | ||
4757 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
4758 | if (state) | |
4759 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
4760 | else | |
4761 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
4762 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
4763 | return 0; | |
4764 | } |